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Rinnai 2001 Gas Heater - turn off

Hi,

My gas heater turns off after about ten minutes. I am assuming it is a safety feature when the thermostat gets to hot. The cuase I don't know. I paid a repairer $99.00 12 months ago to vacuum the heater, but it still keeps happening. Any ideas?

Cheers, David
Melbourne

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  • seaweedsuck Sep 06, 2008

    I have a Rinnai 2001 Gas heater that the pilot light ignites the main flame, then after several minutes when it heats up the fan comes on but the main flame goes out and the fan continues to run until cool, then the fan turns off and you can start the pilot light and continue the cycle. I have disconnected the fan and the main flame will continue to run.
    Any hints would be greatly appreciated.


  • graham_david Nov 08, 2008

    I have a Rinnai Rinnai REH301EB Space Heater, when the heater has been on for several minutes it turns it self off, I am assuming that the thermostat is kicking in, when it does this though the pilot light goes out to, anyone have any solutions

  • Anonymous Apr 28, 2009

    I have exactly the same problem except the space heater is Rinnai model REH300FTC. I vacuumed it but to no use. Can you tell me did you fixed your problem? What was wrong? Or shall I rather look for a new heater?



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If, like me you have a Rinnai **** heater, with a PCB Assembly, then thats what the problem is. Look at around $500+ installation. These PCB's are not repairable. For $500, I am going to trash this heater and get something from a company that does not want to screw me after I have trusted them to live up to their "REPUTATION". Do not support companies that do not support their customers!

Posted on Oct 15, 2009

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When the repair guy cleaned water heater did he run white vinger through the coil inside the heater. Does the control pad show any errors

Posted on Apr 18, 2008

  • Scott Magill Apr 24, 2008

    what model is it? Have you taken out the filter to make sure there is no restriction of water flow.If you have a manual look on page 43 it will tell you the flush procedure. If you don't i can send you the page.




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The difference between thermal fuse and thermostat


Thermal fuse is a heat-sensitive safety feature that shuts down system when overheating is detected.
In electrical wiring, the thermal fuse reacts to high temperature caused by too many amps on the electric circuit. When temperature exceeds the fuse amp rating, then the fuse trips and cuts power to electric circuit.
Example of thermal fuse is a household circuit breaker.
Gas water heaters have a different type of thermal fuse located in the combustion chamber or on the combustion chamber door, and also inside a copper probe inside water tank. Water heater thermal fuses will trip when water temperature exceeds fuse rating, or when heat inside the combustion chamber exceeds temperature rating of fuse. This action will cut off gas supply to water heater.
So a thermal fuse is a safety feature.

Thermostat is not a safety feature.
Thermostat is a measuring tool.
Thermostats measure temperature.
Example of thermostat is outdoor thermometer, or cooking thermometer, or Heat-AC control located on wall inside house.
Thermostats can give a simple temperature reading, or they can cause a separate control to turn on-off depending on application.
For example thermostat on Heat-AC will read room temperature, and when temperature exceeds setting, this triggers a switch that turns Heat-AC on-off.

Many appliances have both thermal safety fuse and thermostat.
Take for example a gas water heater. A copper tube extends into the water tank. Inside the copper tube are 2 things: A thermostat probe to measure water temperature, and a thermal fuse called an ECO for energy cut off. The ECO is a thermal fuse, and is a safety feature.
http://waterheatertimer.org/images/Gas-valve-ECO2-358.jpg
The thermostat reads temperature of water, and turns water heater on-off to keep water hot. A person can adjust water temperature by adjusting the thermostat dial on front of water heater.
However if the thermostat fails, or some other problem occurs, and water inside the tank gets hotter than 180 degrees, then the ECO or thermal fuse will trip. When the thermal fuse trips, this turns off gas to the water heater so water cannot get any hotter. The safety device prevents water heater explosion. The water heater must be repaired since this particular thermal fuse cannot be re-used afterwards, and must be replaced.

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1 Answer

Difference between thermostat and thermal fuse


Hello Mary
Thermal fuse is a heat-sensitive safety feature that shuts down system when overheating is detected.
In electrical wiring, the thermal fuse reacts to high temperature caused by too many amps on the electric circuit. When temperature exceeds the fuse amp rating, then the fuse trips and cuts power to electric circuit.
Example of thermal fuse is a household circuit breaker.
Gas water heaters have a different type of thermal fuse located in the combustion chamber or on the combustion chamber door, and also inside a copper probe inside water tank. Water heater thermal fuses will trip when water temperature exceeds fuse rating, or when heat inside the combustion chamber exceeds temperature rating of fuse. This action will cut off gas supply to water heater.
So a thermal fuse is a safety feature.

Thermostat is not a safety feature.
Thermostat is a measuring tool.
Thermostats measure temperature.
Example of thermostat is outdoor thermometer, or cooking thermometer, or Heat-AC control located on wall inside house.
Thermostats can give a simple temperature reading, or they can cause a separate control to turn on-off depending on application.
For example thermostat on Heat-AC will read room temperature, and when temperature exceeds setting, this triggers a switch that turns Heat-AC on-off.

Many appliances have both thermal safety fuse and thermostat.
Take for example a gas water heater. A copper tube extends into the water tank. Inside the copper tube are 2 things: A thermostat probe to measure water temperature, and a thermal fuse called an ECO for energy cut off. The ECO is a thermal fuse, and is a safety feature.
http://waterheatertimer.org/images/Gas-valve-ECO2-358.jpg
The thermostat reads temperature of water, and turns water heater on-off to keep water hot. A person can adjust water temperature by adjusting the thermostat dial on front of water heater.
However if the thermostat fails, or some other problem occurs, and water inside the tank gets hotter than 180 degrees, then the ECO or thermal fuse will trip. When the thermal fuse trips, this turns off gas to the water heater so water cannot get any hotter. The safety device prevents water heater explosion. The water heater must be repaired since this particular thermal fuse cannot be re-used afterwards, and must be replaced.

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Hi.

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