Solving the Problem: My Mr Heater Pilot Light Won’t Stay Lit

ByLiberty Is Viral Desk Blog

FAQ & Answers

Q: What could be the reason why my Mr Heater Pilot Light won’t stay lit?
A: Possible reasons why your Mr Heater Pilot Light won’t stay lit include a clogged pilot orifice, a faulty thermocouple or thermopile, low gas pressure, or a defective control valve.

Q: How do I know if my pilot orifice is clogged?
A: You can check for a clogged pilot orifice by using an inspection mirror and flashlight to look through the opening. If you see any blockage, it needs to be cleared to allow the pilot light to stay lit.

Q: How do I check if my thermocouple/thermopile is faulty?
A: You can use a multimeter to check if your thermocouple/thermopile is faulty. Connect the multimeter probes to the thermocouple/thermopile terminals and turn on the gas supply. If you get a reading of less than 25 millivolts, then your thermocouple/thermopile may be faulty and need replacing.

Q: How do I check if my gas pressure is low?
A: You can use a manometer to measure your gas pressure. Connect the manometer hose to your Mr Heaters gas line and turn on the gas supply. The recommended range for most models is between 8-10 inches of water column (WC). If you are getting readings outside this range, then there may be an issue with your gas pressure.

Q: How do I know if my control valve is defective?
A: You can check if your control valve is defective by opening it and listening for any sounds such as hissing or clicking coming from it. If you hear any unusual sounds coming from it, then it likely needs replacing.

The most common cause of a Mr Heater pilot light not staying lit is a dirty or blocked gas line. If the gas line is clear and the pilot light still won’t stay lit, it is likely that the thermocouple needs to be replaced. If replacing the thermocouple does not solve the problem, it may be necessary to contact a professional for further assistance.

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Liberty Is Viral Desk
Liberty Is Viral Desk
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