Lochinvar water heater error codes - Since Rinnai water heaters are one of the most advanced tankless water heaters available, we recommend to contact a service technician that's authorized to work on Rinnai water heaters. Each Rinnai unit uses a temperature controller (either MC-91-1 or MC-91-2) on the front panel to display various configuration options for installation as ...

 
LIMITED RESIDENTIAL WATER HEATER WARRANTY ... plumbing, housing or building codes, or II) without a certified American Gas Association, ASME, or comparable combination temperature ... Lochinvar, LLC. • 300 Maddox Simpson Pkwy • Lebanon, TN 37090 • 615-889-8900 / Fax: 615-547-1000 www.Lochinvar.com RES-WAR-06. Louise viridian

• describe the working principles and layout of the water heater • explain the safety devices • highlight possible hazards • describe the use of the water heater • describe the installation, service and maintenance of the water heater This manual has two parts: • An User part that describes the correct usage of the water heater.Manufactured Home Gas Water Heaters. These models deliver up to 38,000 Btu/hr. Manufactured Home Models from 30 to 50 Gallons. Gas Inputs from 30,000 to 40,000 Btu/hr. Glass Lined Steel Tank with Protective Anode Rod. Electronic Operating Control with Diagnostic Indicator Lights. Meets Federal Energy Conservation Standards Effective April 15, 2015.Power-Fin® Boilers. Power-Fin boilers continue to evolve with new "Built-in Advantages" from Lochinvar and 85% thermal efficiency. CON•X•US® Remote Connect. Smart Touch Touchscreen LCD Display. 12 Models: 500,000 to 5.0 Million Btu/hr. 5:1 Turndown Ratio. Outdoor Installation Approved. Cascading Sequencer with Cascade Redundancy.Hot Water Solutions Since 1939 | Lochinvar | LochinvarManuals / Lochinvar / Household Appliance / Water Heater Lochinvar 1.3 Troubleshooting, Fault, Description, Corrective Action, Service Manual Models: 1.3 1The water heater is shipped with three (3) spare fuses in a plastic bag attached to the control module cover. 6. If necessary, replace open fuse (F3 is .80 amps, F2 is 3.15 amps, and F1 is 5 amps). Page 25 - Main control board temperature set point satisfied. - Remote thermostat satisfied. - Unit locked out on fault. - Water heater controlled ...switch is not making. • Check water heater pump operation on a call for heat. • Check for closed valves or obstructions in the water. heater piping. • Verify system is full of water and all air has been. purged from the system. • Check for loose or misplaced jumpers if flow switch is. not installed. Blown fuse.the water heater. See the Water Connections section of this manual for details. This water heater contains very hot water under high pressure. Do not unscrew any pipe fittings or attempt to disconnect any components of this water heater without positively assuring the water is cool and has no pressure. Always wear protective clothing andwith water heater. warning all technical and warranty questions: should be directed to the local dealer from whom the water heater was purchased. if you are unsuccessful, please contact the company listed on the rating plate on the water heater. 300 maddox simpson parkway lebanon, tn 37090 phone: 615-889-8900 • fax: 615-547-1000Installation Commissioning and Maintenance Instructions - Lochinvaroperating modes. Appliance operation is based on heater outlet water temperature, pool supply temperature and pool return temperature. Sequence of operation Table 1A shows control module normal sequences of operation for pool heater operation. Access modes User The user can adjust pool set point by entering the USER code (0704).ERROR 001 – This code hints at a flow or pressure anomaly in the water system. ERROR 002 – A signal that points towards troubles in the venting setup. ERROR 003 – Indicates issues concerning the igniter or flame sense rod. ERROR 004 – Typically associated with problems in the gas supply or combustion mechanism.Turn the gas valve switch to the “OFF” position. Use a ruler to measure the distance from the base of the fan to the end of the air shutter (FIG. 2-7). Compare this distance to the …The Water Heater requires a service, particularly around the pilot assembly. ... • If the appliance is one of Lochinvar's • Which electronics package and model it is ... Enter the code 5309 using the DIAL scan through the numbers and pushing the dial to accept correct number;All KNIGHT fire tube boilers allow for flexible installation with a universal vent connector. Range in heating capacity from 55,000 to 399,000 Btu/hr and perform at 95% AFUE efficiency. The KNIGHT’s Smart System™ display includes the CON•X•US® Remote Connect option to maintain control of your boiler from anywhere.Hot Water Solutions Since 1939 | Lochinvar | Lochinvar8. Once the combustion analysis is complete, test the safety shutoff device by turning the manual shutoff switch to the OFF position and ensuring that the boiler shuts down and registers an alarm. Turn the manual shutoff switch to the ON position, reset the control, and return to Service Mode. 9.When it comes to dealing with issues related to your Lochinvar water heater, understanding the error codes it displays is crucial. As a homeowner who hasConnect a field supplied 3/4" diameter hose to a drain pan. Using field supplied means, cover the refractory in the back of the combustion chamber of the heat exchanger. 6. Use a vacuum cleaner to remove any accumulation on the water heater heating surfaces. Do not use any solvent.Replacing a water heater can be a daunting task, but with the right knowledge and preparation, it can be a smooth process. However, there are some common mistakes that homeowners o...COMMERCIAL GAS WATER HEATERS LIGHT DUTY CHARGER GAS MODELS Lochinvar's commercial Light Duty Charger tank-type water heaters are available in 55, 74, and 98 gallon capacities. ... Lochinvar, LLC 300 Maddox Simpson Parkway Lebanon, Tennessee 37090 P: 615.889.8900 / F: 615.547.1000 Lochinvar.com For technical information call 800-722-2101 ...Page 29 1 Turn the power off for 10-20 seconds, then on again to Self diagnostic check has detected clear these error codes. a problem with the gas valve driver circuit, internal microprocessor, or 2 If any of these …To reset a Lochinvar water heater, first turn off the power supply. Then, locate the reset button on the thermostat and press it. After pressing the reset button, turn the power supply back on. Make sure to check if the water heater is functioning correctly after resetting. If the issue persists, you may need to consult a professional.When your EcoSmart tankless water heater is getting water below 150 degrees, the display LED will illuminate or light with the desired set home temperature.If you're looking for help fixing your Whirlpool Water Heater, look no further! Our comprehensive Whirlpool Water Heater error code guide will explain common...1 Common Issues And Solutions. 1.1 No Hot Water: What To Do When Your Heater Stops Working. 1.2 Possible Causes And Troubleshooting Steps. 1.3 Checking For Error Codes And Understanding What They Mean. 1.4 Codes And Error Messages: Decoding Your Lochinvar Water Heater. 1.5 Resetting The Water Heater And Restoring Functionality.Encounter an error code on your Rheem hot water heater? Watch our video for a step-by-step guide on troubleshooting the most common error codes, including Ec...Lochinvar SNA201-100 - 90 Gallon - 199,999 BTU Shield Commercial Water Heater (Natural Gas)- The SHIELD commercial water heater delivers best-in-class innovation from Lochinvar. It operates at 96% thermal efficiency, and provides a 100% effective defense against a water heater's worst enemy - lime scale buildup inside the tank. Lime scale buildup insulates the water from the heat source ...Page 31 TB-A028-06 - A. O. SMITH - FVIR INTELLI-VENT TROUBLESHOOTING CHART LED STATUS PROBLEM SOLUTION The self diagnostic test has 1 Turn off power to the water heater. Ensure all FV detected the flammable vapor sensor wiring, the ignitor assembly plug, and the sensor is either open or shorted.An error code like this is typically caused by air in the system.This water heater must be installed in accordance with local codes. In the absence of local codes, it must be installed in compliance with the National Fuel Gas Code (ANSI Z223.1-Latest Edition), or in Canada CAN/CGA B149.1 ... This water heater must be located in an area where the general public does not have access to set temperatures. 3 TNR ...Lochinvar SNA201-100 68 12 Troubleshooting Table 12E continued from previous page Troubleshooting Chart Fault Messages Displayed on Water Heater Interface Instal... MansIo Mans.Io Contactspool and spa heater, for homeowners who want the best of everything. Lochinvar, LLC 300 Maddox Simpson Parkway Lebanon, Tennessee 37090 P: 615.889.8900 / F: 615.547.1000 Lochinvar.com 10/2023 - Printed in U.S.A. HLW Optional ERP-05 (Reprint ERP-05 5/22) ® For technical information call 800-722-2101. Lochinvar, LLC reserves theDESIGNER'S GUIDECOPPER-FIN II WATER HEATER. DESIGNER'S GUIDECOPPER-FIN II®WATER HEATER. 400,000 - 2,070,000 Btu/hr. Dear Specifier/Project Manager, At Lochinvar, we have long recognized the importance of innovation to any product or service. Those who enter into business mustalso accept the challenge of meeting constantly changing needs.Faulty gas control valve; Clogged vent, etc. Solution. If insufficient gas supply is the problem, you need to make sure the gas tank valve is open so that it can supply gas without interruption.Warranty Code Ex pla na tion. Water heater tanks for residential use have a six (6) year limited warranty effective. 60 days from date of manufacture as determined by the serial num ber. Water heater tanks for commercial use have a three (3) year limited warranty effective 60 days from date of manufacture as de ter mined by the serial number.Maytag washers are known for their durability and reliable performance. However, like any other appliance, they can occasionally encounter issues that may display error codes on th...2. Allow time for the water heater to cool to room temperature if it has been firing. Page 58: Troubleshooting F2 - 3.15 AMP FUSE 24V SUPPLY 5. The water heater is shipped with three (3) spare fuses in a plastic bag attached to the control module cover. 6. If necessary, replace open fuse (F3 is 1.25 amps, F2 and F4 are 3.15 amps, and F5 is 5 amps).Hot Water Solutions Since 1939 | Lochinvar | LochinvarHot Water Solutions Since 1939 | Lochinvar | Lochinvar15-150 psi Water Pressure. 40 psi or above is recommended for maximum flow. *Current numbers based on factory testing; 0.5 gpm required for activation; 0.4 gpm required for continuous fire after initial ignition.A comprehensive product range which provide efficient, reliable heating and hot water solutions for new-build or refurbishment requirements. Product Ranges. Configuration Chooser. Support. Condensing water heaters. Gas-fired boilers. Heat Pump packages. Electric Water Heaters.The outlet water temperature has exceeded the 210°F manual reset high limit (MRHL) setting. • Verify that the system is full of water and that all air has been properly purged from the system. • Verify that the boiler is piped properly into the heating system. • Check 120 vac to pump motor on a call for heat. Find and turn off the water heater’s circuit breaker or remove disconnects. 2. Find electrical junc on box on side of water heater, remove cover and iden fy the two (2) power wires. Turn circuit breaker back on 3 (or re-install the disconnects) and check for power on both incoming power wires using a voltmeter. When it comes to appliances like water heaters, knowing their age is crucial for maintenance and replacement purposes. AO Smith, a renowned brand in the water heating industry, has...The fully modulating, gas fired, tankless water heaters offer sealed combustion and power vented flue supply making them ideal for residential hot water systems. Now equipped with X3 Technology™, these non-condensing units offer extended service life of up to three times longer than traditional models without X3 scale prevention technology.Page 1: Instruction Manual. InstALLAtIon - oPErAtIon - sErVICE MAIntEnAnCE - LIMItEd wArrAnty 300 Maddox Simpson Parkway Lebanon, TN 37090 Phone: 615-889-8900 • Fax: 615-547-1000 Technical Service email: [email protected] www.Lochinvar.com Low Lead Content (OPTIONAL) Thank you for buying this energy efficient water heater.Residential Tankless Condensing High Efficiency Gas Water Heater. 120,000 to 199,000 Btu/hr Input. Indoor or Outdoor Models. Condensing at .93 EF (Energy Factor) Low Lead Compliant. Ultra Low NOx Meets SCAQMD Rule 1146.2. SEE MANUAL FOR PARTS LIST. Technical Documents.How to fix it: Check that pool pump is receiving enough water. Ensure that your pool pump is sending water to the heat pump. For variable speed pool pumps, try putting the pump speed up a notch Check for any clogs or backups causing poor water circulation. The same is true if what you use is in your pool is the Raypak pool heater.Summary of Contents for Lochinvar ARMOR 150 - 800. Page 1 AW-SER Rev H Service Manual Models: 150 - 800 This manual must only be used by a WARNING qualified heating installer / service technician. Read all instructions, including this manual and the Armor Water Heater Installation Operation Manual, before installing.Lochinvar SNR151-100 - 90 Gallon - 150,000 BTU Shield Commercial Water Heater (Nat Gas)- The SHIELD commercial water heater delivers best-in-class innovation from Lochinvar. It operates at 96% thermal efficiency, and provides a 100% effective defense against a water heater's worst enemy - lime scale buildup inside the tank. <br><br> Lime scale buildup insulates the water from the heat source ...Install the shutoff valve near the water heater so that it is readily accessible. Only use a full-fl ow ball or gate valve compa ble with potable water. Install a Thermosta c Mixing 2. Valve at each point-of-use (for example, kitchen sink, bathroom sink, bath, shower) per the valve manufacturer's instruc ons.Boiler on and firing. Water temp sitting at setpoint. A zone with a lot of cold water opens up and the boiler temp drops rapidly. Once the Delta T got past that 40-45* mark it would lock out and show a fault code.INSTALLATION AND SERVICE MANUAL. GAS HEATERS FOR COMMERCIAL POOL APPLICATIONS 500,000 - 2,070,000 Btu/hr MODELS Starting Serial #F0600187510. CPE-I-S-14. WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.Hot Water Solutions Since 1939 | Lochinvar | LochinvarWater Heater Lochinvar GAS HEATER FOR COMMERICAL POOL Installation And Service Manual Gas heaters for commercial pool applications 500,000 - 2,070,000 btu/hr models (60 pages) Water Heater Lochinvar Copper-Pak Replacement Parts ListThe durability of lochinvar water heaters is highly regarded, as users mention that the units have lasted for several years without any major issues. Numerous customers have mentioned the energy-saving features of lochinvar water heaters, which contribute to lower utility bills and a smaller carbon footprint.Lochinvar toll-free at 833-232-9706 from 8 a.m. to 8 p.m. ET Monday through Friday or online at www.lochinvar.com and click on "Recall Notices" at the bottom of the page. Consumers can also check for the recalled boilers' serial number at: www.waterheaterrecall.com, and select the look-up feature for the flue collector recall.ERROR 001 - This code hints at a flow or pressure anomaly in the water system. ERROR 002 - A signal that points towards troubles in the venting setup. ERROR 003 - Indicates issues concerning the igniter or flame sense rod. ERROR 004 - Typically associated with problems in the gas supply or combustion mechanism.Here's a shortcut on how to solve the five flash issue: 6. Six-One Flash Three Seconds Pause. This blinking light code indicates that the ignition has failed and the heater won't light up. The most common reason behind it is having a poor gas supply that's not sufficient to light the heater.With ARMOR, you can match one or more water heaters with inputs ranging from 150,000 to 285,000 with one or more storage tanks in a wide variety of sizes. Models From 150,000 to 285,000 Btu/Hr AWN400PM to AWN801PM / OUT OF PRODUCTIONThis gas-fired water heater is design certified by CSA International as a Category IV vented heater, under Water Heater Standard ANSI Z21.10.3 • CSA 4.3 (current edition). QUALIFIED INSTALLER OR SERVICE AGENCY Installation and service of this water heater requires ability equivalent to that of a Qualified Agency (as defined by Connect a field supplied 3/4" diameter hose to a drain pan. Using field supplied means, cover the refractory in the back of the combustion chamber of the heat exchanger. 6. Use a vacuum cleaner to remove any accumulation on the water heater heating surfaces. Do not use any solvent. Hot Water Solutions Since 1939 | Lochinvar | LochinvarFor nearly 80 years, Lochinvar, an American company, has been a leader of innovation and high-efficiency water heating. Through Lochinvar's pride in leadership and commitment to excellence, the company has continually improved year after year. Today, Lochinvar touts the broadest line of high-efficiency water heating solutions, a world-class ...Lochinvar® Water Heater & Boiler age. How to determine the date of production/manufacture or age of Lochinvar® brand Water Heater & Boiler Systems. Water heaters in general have an average estimated useful service life of 10-12 years, though water quality, routine upkeep/maintenance, and location of the water heater will all play critical ...EFFECTIVE For 3 Years, in the event of a tank leak, we will repair or, at our discretion, replace the defective water heater. For 1 Year, in the event of part failure, we will repair or, at our discretion, replace the defective part. We warrant this product against defects in materials or workmanshipWith thermal efficiency of 85%, Power-Fin water heaters feature infinitely modulating burner firing rates (turndown), precisely matching the firing rate to domestic water load requirements. The result is better overall efficiency and less cycling. 7 Models from 500,000 - 2,000,000 Btu/Hr. 85% Thermal Efficiency. 5:1 Turndown Ratio.The Lochinvar SSS series indirect water heater (FIG. 1-1) is designed to generate domestic hot water in conjunction with a hot water boiler using forced boiler water circulation. This indirect water heater consists of a 444 Stainless Steel tank in which a smooth 304 stainless steel coil is located.Turn the gas valve switch to the “OFF” position. Use a ruler to measure the distance from the base of the fan to the end of the air shutter (FIG. 2-7). Compare this distance to the …Lochinvar SNA286-125 64 12 Troubleshooting Table 12E Troubleshooting Chart Fault Messages Displayed on Water Heater Interface Installation Service Manual ERROR C... MansIo Mans.Io. Contacts; Forum; Ask a Question. ... ERROR CODE DESCRIPTION CORRECTIVE ACTION. E00. Invalid lockout code. heater or vent-air intake system. Codes – This pool heater has been designed and certified under the latest edition of Z21.56/CSA 4.7 Gas Fired Pool Heater Standard, including applicable addenda. The pool heater shall be installed in accordance with those installation regulations in force in the local area where the installation is to be made. Multi-Flue Charger commercial gas water heaters are designed to provide ease of installation, low stand-by loss, and years of trouble-free service. 13 Models from 65 to 100 Gallons Gas Inputs from 120,000 to 500,000 Btu/hrIs your water heater showing a flammable vapor sensor code? Luckily that error code can easily be reset and you will have hot water again in less then an hou... This gas-fired water heater is design certified by CSA International as a Category IV vented heater, under Water Heater Standard ANSI Z21.10.3 • CSA 4.3 (current edition). QUALIFIED INSTALLER OR SERVICE AGENCY Installation and service of this water heater requires ability equivalent to that of a Qualified Agency (as defined by following the lighting instructions on the water heater ’s. label. Look through the view port for the Pilot flame. If. Pilot is not visible, the spark igniter or gas supply to the. Pilot should be checked. If the Pilot is visible and the Status Light does not blink. after 90 seconds of continuous Pilot operation, the Pilot.EFFECTIVE For 3 Years, in the event of a tank leak, we will repair or, at our discretion, replace the defective water heater. For 1 Year, in the event of part failure, we will repair or, at our discretion, replace the defective part. We warrant this product against defects in materials or workmanshipSummary of Contents for Lochinvar 402. Page 1 CFX-CHX-SER Rev C Copper-fin II/IIE Boiler and Water Heater Service Manual Models: 402 - 2072 This manual must only be used WARNING by a qualified heating installer / service technician. Read all instructions, including this manual and the Installation and Operation Manual, before installing.View and Download Lochinvar 100 Series installation & service manual online. Indirect Plate Water Heater. 100 Series water heater pdf manual download. Also for: Ipw120dw, Ipw015dw, Ipw090dw, Ipw070dw, Ipw105dw, Ipw030dw, Ipw050dw.We are a leading producer of energy-efficient water heating solutions that are radically simple, brilliantly engineered and perfectly suited for most any application. We focus solely on serving the unique needs of each customer with a product portfolio including boilers, water heaters, pool heaters, cogeneration products and commercial package ...

When it comes to dealing with issues related to your Lochinvar water heater, understanding the error codes it displays is crucial. As a homeowner who has. Hot nails bayonne nj

lochinvar water heater error codes

Tankless Water Heater Video Tutorials. INSTALLATION (1:16:16) This video demonstrates installation of a tankless water heater. ... TROUBLESHOOTING: ERROR CODE 111 …Lochinvar 400, 801 Table 3-4 Troubleshooting Chart - Fault Messages Displayed on Boiler Interface, Gas Pressure SW, Flow Switch/ LWCO, Blocked Drain SW 1 37 48 48 Download 48 pages, 2.14 MbDomestic hot water is from two electric hot water tanks. Problem with boiler is as follows. N05 code: increased fan speed low flame current. So I replaced flame sensor since it looked pretty cooked. It still throws N05 code. Replaced to gas furnace which heats house better than hydronic air handler, also warm outside.These parameters can be changed by the installer by accessing the Set point 1 at High Outdoor Temp 1, Set point 2 at High Outdoor Temp 2 and Set point 3 at High Outdoor Temp 3 parameters. The temperature range of this parameter is 68°F (20°C) to 190°F (88°C). The default value is 70°F (21°C).by this water heater. all technical and warranty questions: should be directed to the local dealer from whom the water heater was purchased. if you are unsuccessful, please contact the company listed on the rating plate on the water heater. 300 maddox simpson parkway lebanon, tn 37090 phone: 615-889-8900 • fax: 615-547-1000We are a leading producer of energy-efficient water heating solutions that are radically simple, brilliantly engineered and perfectly suited for most any application. We focus solely on serving the unique needs of each customer with a product portfolio including boilers, water heaters, pool heaters, cogeneration products and commercial package ...Lochinvar shall be installed according to the procedures detailed in this manual, or the Lochinvar Limited Warranty may be voided. The installation must conform to the requirements of the local jurisdiction having authority, and to the latest edition of the National Fuel Gas Code, ANSI Z223.1.Plus Domestic Hot Water Prioritization > Built-in Cascading Sequencer for up to 8 Boilers, with Cascade Redundancy ... M7 California Code. Model Number Input MBH Heating Capacity MBH Net AHRI Rating MBH AFUE% Gas Conn. Water Air Inlet Vent ... Lochinvar, LLC 300 Maddox Simpson Parkway Lebanon, Tennessee 37090 P: 615.889.8900 / F: 615.547.1000The bottom of the boiler has a 3/4 inch pipe for connection of a 3/4 inch PVC pipe (FIG. 2-2). Slope condensate tubing down and away from the boiler into a drain or condensate neutralizing filter. Condensate from the Noble Combi Boiler will be slightly acidic (typically with a pH from 3 to 5).Lochinvar's Manufactured Home residential gas models are available in 30, ... • Code Compliance - Complies with the Federal Energy Conservation Standards effective April 16, 2015, in accordance with the Energy Policy and Conservation Act, (EPCA), as amended. ... water heater may NEVER be connected to any existingIs your water heater showing a flammable vapor sensor code? Luckily that error code can easily be reset and you will have hot water again in less then an hou...50 gal. Type: LGIT050. Water Heater Capacity Range: 41 - 50 gal. 0. Shop for 50 gal. Indirect-Fired Water Heater from Lochinvar At Ferguson. Ferguson is the #1 US plumbing supply company and a top distributor of HVAC parts, waterworks supplies, and MRO products.This clock must be set when the appliance is installed and anytime the appliance has been powered off for more than one day. Use the following procedure to set the clock: Press the SETTINGS button under the Lochinvar logo (see FIG. 1-1). Press the SET button across from the date and time (see FIG. 1-2).If you have diffi culty following the direc ons, or aren't sure you can safely and properly do any of this work yourself: • Call our Technical Assistance Hotline at 1-800-722-2101 or visit h p://www. lochinvar.com. We can help you with installa on, opera ons, troubleshoo ng, or maintenance.KNIGHT™ Fire Tube Boiler. Consistency in features and benefits across the KNIGHT Fire Tube Boiler family makes it easier to install and service no matter what model you choose. 6 Models from 55,000 to 285,000 Btu/hr. 95% AFUE. Up to 10:1 Turndown Ratio.• Install vent system in accordance with codes. • Do not operate water heater if flood damaged. • For operation above 10,100’ (3,079 m), a high altitude orifice must be installed. • Do not operate if soot buildup is present. • Do not obstruct water heater air intake with insulating jacket. • Do not obstruct blower air intake.A comprehensive product range which provide efficient, reliable heating and hot water solutions for new-build or refurbishment requirements. Product Ranges. Configuration Chooser. Support. Condensing water heaters. Gas-fired boilers. Heat Pump packages. Electric Water Heaters.Configuration: Lochinvar FTXL boiler (LP) two years old, Ecobee Thermostats. Problem: Starting about a week ago, I started receiving an increase in lockout messages, both "flame fail ignition" and "flame fail running." Also during that same time period, I started to see anomalies on the thermostat: after several hours of the temperature ...Let the air out of the waterline, replace the sensor. Code E04. Leak sensor detecting moisture or a leak. Detect the source of leakage, hire a professional. Code E06. Water temperature too high, faulty thermostat, faulty heating elements. Adjust the thermostat power, replace the thermostat and heating elements..

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