Question about Procom ML300HGA Heater

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Burner won't light

This is brand new, I just had it professionally installed. The pilot lights fine but when you turn the knob to light the burner the pilot goes out and you have to relight the pilot. I did this about 10 or 12 times and then it finally lit the burner one time and hasn't worked since. What is wrong??

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  • larry-lori Dec 22, 2008

    what does the thermocouple look like

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I left it off for a couple hours and it fired back up.

Posted on Nov 09, 2008

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Desa heater


For (fire) safety, there is usually a thermostat that will turn off the gas if pilot light goes out.

So when you try to light the pilot you will have keep press & hold the pilot gas supply for at least 10 sec until the thermostat is heated up. Then only when the pilot light stays on continually, can you turn on the burner.

Forget about changing to a High pressure regulator!

Dec 24, 2013 | Heaters

1 Answer

I changed the thermo coupler and the pilot light does stay lit but the burners won't light


If you are referring to a gas fireplace:

  • Make sure the pilot knob is turned from "pilot" to "ON" or it will never run.
  • If the pilot knob is "ON", and the pilot is lit, but the burner won't light, it could be a bad Thermopile. The thermopile is the other safety mechanism in the pilot assembly that controls the burner.

Dec 19, 2012 | Heaters

1 Answer

Vermont Casting vent free pilot lights but burner will not light


Check switch on/off switch the voltage may be too low. Check gas valve knob is turned to the on position if it's on pilot position bunkers won't come on.

Dec 18, 2012 | Heaters

1 Answer

I have a 5301. Connected last year, worked fine. Installed new batteries, connects and beeps, but fireplace won't light. All controls are in correct position.


I know it seems obvious, but sometimes over the summer people shut off their pilot light, and when relighting forget to move the pilot knob back to the "on" position after the pilot is going - check this first.
Next, you can slide the switch on the Skytech 5301 receiver from "remote" to "on" and verify that it lights the burner. If it does, you may need to re-sync the remote to the receiver. If it does not, check to make sure your wires are nice and tight on the TH & TP/TH connections of the valve.
If you are still having trouble, Skytech has a toll-free hotline for tech support on the 5301. It is: 1-888-672-8929 8am-5pm EST.

Nov 29, 2012 | Procom SSU320RHN-GB Heater

1 Answer

RHFE Rinnai 551FT gas heater is not working after 7 years


see this steps and fix it. God bless you
.
If there is no heat, check the electrical service panel for a burned fuse or tripped breaker. Relight the pilot light (see below).
If there is not enough heat, adjust the burner air shutter (see below); and clean the burner ports (see below).
If the pilot light does not light or does not stay lit, clean the pilot orifice carefully with a toothpick, test the thermocouple and replace it if it is faulty (see below).
If the flame flickers, adjust the pilot (see below).
If there is an exploding sound when the burner ignites, adjust the pilot to a higher setting and clean the pilot orifice and the burner ports.
If the burner takes more than a few seconds to ignite, clean the pilot orifice and adjust the pilot light.
If the burner flame is uneven, clean the burner ports. If the burner flame is very yellow, clean the burner; open vents in the furnace room to provide more air; adjust the burner air shutter.
To light the pilot on a standing-pilot (always on) ignition system, follow the lighting instructions located near the control. Otherwise, try these steps:
Light the pilot:
  1. gasfurnace1.jpg Press and hold the pilot control knob to start the pilot. Set the control knob to the pilot position. Hold a long match under the pilot gas port.
  2. Press the control knob; the pilot should light. Hold the control knob down until the flame is burning brightly (about 30 seconds). Release pressure on the knob, and turn it to the on position.
  3. If the pilot goes out when you release the control knob, try relighting, holding the control knob down longer. If the pilot again goes out, check the thermocouple (below).
Adjust the pilot:
  1. Remove any cap covering the pilot adjusting screw on a combination control.
  2. Turn the adjusting screw counterclockwise to increase the flame or clockwise to decrease it. It is correctly adjusted when the flame envelops the thermocouple bulb by 1/2 inch and appears dark blue with a small yellow tip.
Test and replace a thermocouple:
  1. Hold the control knob to pilot and light the pilot as above.
  2. Unscrew the thermocouple fitting with an open-ended wrench.
  3. Set a multimeter to the DVC (lowest voltage) scale.
  4. Clip one multimeter lead to the end of the thermocouple tube nearest the pilot and the other lead to the fitting on the other end of the tube.
  5. If the multimeter shows a reading besides zero, the thermocouple is functioning. Replace the thermocouple tube.
  6. If there is no reading, you will need to clean or replace the thermocouple following steps 7 through 11.
  7. Release the control knob and shut off the main gas valve on the gas-supply pipe that leads into the burner. Shut off power to the burner at the electrical service panel .
  8. Remove the thermocouple from its mounting bracket.
  9. Wipe the combination control clean and install a new thermocouple, tightening it by hand, then give it a one-quarter turn with a wrench.
  10. Insert the thermocouple into the pilot bracket, being careful to not crimp the tubing.
  11. Turn on power to the furnace and relight the pilot (above).
Adjust an adjustable burner air shutter:
  1. Set the thermostat to its highest setting to keep the burner running. Once the furnace has heated up, remove the burner access panel and loosen the locking screw.
  2. Open the shutter by turning it to the right until the blue base of the flame appears to lift slightly from the burner port surface. Then close the shutter until the flame reseats itself on the surface.
Clean removable burner tubes and ports:
  1. Shut off gas and power to the furnace.
  2. Unscrew or loosen and remove the tubes from the supporting bracket.
  3. Carefully clean the tubes with a brush or vacuum, making sure not to damage the burner ports.
  4. Use a stiff wire to clear any debris from clogged ports.

Sep 30, 2012 | Heaters

1 Answer

Burner won't light, pilot is burning just fine.


Once you get the pilot to light and stay lit did yall move the burner knob to the ON position? Is the temp knob all the way up?

Nov 27, 2011 | Procom Heaters

1 Answer

I have a Model 200209 LP heater. It worked fine one night. Then, about a month later, it would not light and stay lit and I could only light it with a match. After looking closer, I saw that the pilot...


Clean the pilot using a can of compressed air with a straw nozzle (like you clean your computer with) and while you're at it, clean the burner, using a brush and the canned compressed air to blow it out. Insects like to build nest in these heaters when they're not in use.

Be sure to turn the LP gas tank OFF and disconnect the hose from the tank, before attempting any cleaning. When you reconnect the hose to the tank, open the gas valve VERY, VERY SLOWLY (Slow motion, slow) until it's fully open. Then light the pilot & hold the control knob in for 30 to 60 seconds, before releasing it and turning it to the ON position.

Hope this helped you and thanks for choosing FixYa.

Sep 19, 2011 | Endless Summer 200209 Open Flame Patio...

1 Answer

Have model VAIL-36 propane fireplace. installed a new PILOT ASSY including a new thermocouple. Pilot lites fine, but wont trigger the main gas to come on. Mark 781-929-0711


Mark, have you turned the Control Knob from the Pilot position to the ON position?

If you have and it didn't light the burner, how tight did you install the Thermocouple connection to the Gas Control Valve? If you tightened fully with a wrench, you over tightened it. Loosen the nut and take the fitting out, wait 2 minutes. Then, reinsert it, tighten it only finger tight and with the appropriately sized open end wrench tighten it ONLY 1/4 turn more. No more and no less.

You didn't mention is you have a Millivolt Burner (Remote Ready) or a Thermostat Controlled Burner.
If it's a Millivolt Burner make sure that the leads from the Thermopile are attached to the TH & TP connectors of the Gas Control Valve. If you have a Remote Control, the leads should be on the TH & TPH terminals.

If it's a built-in hydraulic thermostat burner, the leads go on the TP & TH terminals

If none of the above solves your problem. Contact me via email at americanhearthandhome1@yahoo.com. I am an ECS dealer. I'll be in my office until 1pm EST, today.

Hope this helps you solve your problem.

Rich

Feb 17, 2011 | Empire Comfort Systems Heaters

2 Answers

Pilot is lighting, but unit won't light


If the pilot light stays light after you relaease the knob, but your burner will not light then it most likely is the tip switch. Install a jumper wire across the tip switch connections and your burner should light, do not operate with jumper wire as this is bypassing the saftey feature.

Apr 27, 2010 | Endless Summer (GA200209) Stainless Steel...

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