Question about Heating & Cooling

2 Answers

Voltage light comes on and shuts off heater

When I turn it on it fires up o.k. but after about 10 seconds the voltage light blinks on and kills it. I checked the ground wires and they seem fine.

Posted by on


2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I happen to be in the heater buisness too and the problem you are having is more than likely due to a faulty thermostadt. Many factories buy there thermostadts in the US and have them shipped to China. Last year many of those shipped were defective and are pre-set to shut off lower than where they should due to a faulty internal setting from the thermostadt manufacture.

Posted on Jun 02, 2009

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

If the unit has a flame sensor, a rod at the burner opening, sometimes if you remove it and clean it with steel wool, this might solve the problem.

Posted on Jan 19, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Blinking Check Engine Light / Rough Idle

Double check the spark plug wire firing order. The cylinder have to have voltage in a certain order. If you do not have a motor manual you can google for this information. just write for example: 2002 ford taurus 6 cylinder spark plug firing order. The firing order goes in sequence usually in a clockwise direction. For example: 1, 5, 3 ,6 2, 4 in a clockwise order. spark plug #1 wire goes to the coil then spark plug #5 wire goes on the coil in a clockwise rotation, next to where spark plug # 1 was connected. This would mean that spark plug number 1 will fire (or get voltage), then spark plug nuimber 5 will fire (get voltage), then spark plug number 3 and so on. The sequence will continue to happen over and over again as long as the car is on. Here's another tip! When it nice and dark outside, turn your car on with the hood open and look at your spark plug wires for any voltage jumping from the wires to the motor metal. Keep in mind you may have to tent yourself with a cardboard to see the voltage arcing to metal. It has too be super dark for you too see this fault. Any arcing will cause your engine to misfire and your engine light to come on. Hope this gives you a starting point to finding the problem. Good Luck.

Mar 07, 2014 | 1996 Pontiac Sunfire

1 Answer

ADP CUHN45a-4 wont light

It is likely that either the igniter or the gas valve will have to be replaced

Dec 09, 2013 | Star Enerco Heat HSU45 Garage Heater 45000...

1 Answer

Tv blinks green for a few seconds then u hear a exhaust sound and then the lamp light turns red and shuts down.

Check the high voltage circuit. The TV has a chip that checks all the circuits before allowing to turn on. My Samsung had only a high voltage of 380 votes DC at the capacitor. Samsung has 3 boards, inputs (control), video and power boards which has 120 volts enter leading to a fuse, then a small high voltage transformer, with a capacitor - 100 uf rated at 450 volts. Found two capacitors - 150 uf and 220 uf rated at only 400 volts and connected them in parallel and measured the voltage showing 391 volts. The TV worked again. Good lucky

Jan 11, 2018 | Panasonic PT-56LCZ70 56" HDTV

1 Answer

Get several codes , when i turn it on all the lights come on and display has a 888, then a 180. all goes off, receive a code sf 1, then an r4

Check your stack flu sensor. Sensor can not be jumped. As soon as the heater fires hold down the pool or spa button until the stack temp appears. At 500 degrees the heater will shut off giving a code. The heater should not restart. I would also check for wire damage based on the description of your issue and the board restarting on it own. You may also have damage to the "user interface board" , hard to say with out on site trouble shooting.

Jun 04, 2017 | Sta Rite Sta-Rite Max-E-Therm High...

1 Answer

Pool heater gas fire lights up and turns off 10 secs later

Assuming you don't hear any banging noises, that cycle is by design. There is a fault. 2 possible causes are the ignition board is bad, or the ignition sensor is not returning a voltage indicating the flame is lit. Take this out and put the ignition piece on your stove flame. Check for voltage while on flame (DC millivolt setting on multimeter). Put one probe on ground other on sensor lead. If it doesnt have voltage this is bad. If you do, its possible your board is bad.

Apr 26, 2010 | Hayward H Series Induced Draft Abg 100,000...

3 Answers

My goodman furnace will start to ignite, then it glows and then shuts off. THe fan keeps blowing. The red light blinks once. The system code says "system lockout".

Another part that you might want to check is the flame sensor. It is a very good chance that this is the problem, the stat calls for heat, the induced draft motor (little motor on from of furnace), ignitor comes on, the main burner fires, just for a second or two, the burner shuts down, the main blower motor defaults to blower on!
If this is the issue;
Then this is what you do to fix it, kill power to the furnace, look where the burners are, to the left side there is a little wire, usually yellow or orange running to what kinda looks like a spark plug, one screw should be holding it to the burner bracket. take it out, at the end of the white porcelain is a small metal rod sticking out, it probably has a slight bend in it.
take some steel wool, or sand paper and clean the rod till is is nice and shiny, NOTE: when you take it out, it won't look really dirty, maybe just like a pencil lead,,,,it is dirty!
Just use the sandpaper and clean the rod till it looks like metal, "do not sand the white porcilen". Put the part back in and turn the power back on and run the furnace as usual.
90 % chance that this will fix your problem.
The rod get a build-up on it from the sulfur that is added to the gas, and has a hard time passing the milli-volt signal back to the furnace computer, which is passed from the ignitor, through the flame, to the sensor! This way the computer knows that all of the burners are firing and it is safe to run!
Please take time to come back and rate me, or contact me with any further questions!
Have a warm day :)
Paul Gibson

Do not touch the ignitor! The part that gets bright and hot! Even when it is cold, the oil on your fingers will cause it to burn out.

Mar 23, 2010 | Goodman GMS90703BXA Heater

1 Answer

My goodman heater will not run all of the sensors check out ok and have voltage the vacuum switch is also working I am getting one blink after the furnace shuts back down,there is no voltage to the...

This is a step system for heat ,,, step 1....... thermostat calls fo heat and send power to the vent fan motor, it proves its running by a small suction on the red tube which closes a switch and tell the c. b. to go to step--2 lite the hsi this glows &in20 seconds....step --3 the gas valve opens and dump raw gas in the venturis tubes.. and proves it has a flame thru the flame sensor. and step 4... the box heats up and closes the fan switch..

Dec 20, 2009 | Goodman Heating & Cooling

3 Answers

Goodman Furnace GMP 050-03

You need to check for 24 volts across the gas valve as the ignitor glows. If you get it, it is a bad gas valve. If there is no voltage or strange voltage, replace the control board.

Dec 09, 2008 | Goodman GMS90703BXA Heater

2 Answers

Akai PT4298HD No Power, Blinking timmer light

if you know aything about tvs which it appears you do check to see if you are getting voltage to the horizontal output ckt at the collector of the horizontal output transistor if you are probably you either have a horizontal drive or output problem if you are not check to see if you have either fuses or icps or pico fuses are open generally you will see about a 135 volts to yhe hoizontal output ckt.

Dec 15, 2007 | Akai PT4298HD Rear Projection Television

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

93 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

Paul Carew

Level 3 Expert

3178 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Tim Whalen

Level 3 Expert

3074 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides