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I need to obtain a typical manual pilot natural gas hanging shop heater wiring diagram. it is a totally 110 volt wiring configuration and has been wired for direct non-stop operation and i would like to install a line voltage thermostat to control the heater, but would like to verify that all safeties are in the configuration when i am through. there are a couple of visibility issues to the wiring so i need some help if possible. thanks

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  • fatman98 Jan 09, 2009

    I ASKED FOR A DIAGRAM.

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Put a 120v Thermostat in series with the power switch. No need to alter the unit.
Hope this helps.
Matt

Posted on Jan 07, 2009

  • Matt McElhenny
    Matt McElhenny Jan 09, 2009

    Why is this rated inappropriate?

    Put a line voltage thermostat in the line voltage going to the unit.

  • Matt McElhenny
    Matt McElhenny Jan 10, 2009

    Contact the manufacturer and perhaps they can mail you a diagram. This is a chat board. I can't produce a diagram with this format. Good luck.

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Heater will not ignite


  1. Do you have a standing pilot style heater = Milivolt
  2. or is it an IID = Spark style ignitor
  3. Or... Hot surface Ignitor = glows red hot like an auto cigarette lighter?

Most common problem I have come across over the last few weeks, is pressure switch not closing, meaning - dirty filter. Try cleaning your filter: backwash or rinse cartridges.

  1. is pilot staying on, and burning well?
    1. If so, is htr's gas valve in ON position?
  2. Do you hear sparking?
    1. If No, then one of the safety switches is keeping heater from firing...
      1. Toggle switch - on/off
      2. Thermostat - turned up high?
      3. Pressure switch - closes circuit when pump comes on
      4. 2 each high limits
      5. Fusible link / roll out switch
    2. If yes, either gas valve is off, is bad or the Ignition module is bad? Some call it grey box.
      1. You will need to test for voltage at the common and MV posts of the gas valve - 24 to 28 volts. If voltage = bad gas valve; if no voltage = bad IID Module (Intermittent Ignition Device)
  3. Do you see a bright red glow in the burner tray area?
    1. If yes, either fuel supply is off, or Ignitor has worn out and the glow is not hot enough to ignite raw fuel.
    2. If no, check voltage at Ignitor - depends on make and model of heater- could be as low as 24 volts and as much as 110 volts. So... No voltage at the supply wires = bad sending component, again depend on brand and model, could be ignition module, could be circuit board?
    3. If yes voltage, bad Ignitor
      1. Again, this is if fuel supply is confirmed.
Good Luck

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signal to energize gas valve is not being sent by controller either bad board or shorted wire sending 24 volts to gas valve

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May 11, 2014 | Jandy Lite 2 Natural Gas Pilot Light...

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Heater stopped firing up to achieve temperature. No gas release


when firing see if voltage to gas valve brown wire should be 24 volts ac if voltage bad valve if no voltage check safety circuit

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Model# BWH30NLTB


Unit goes under sure heat name also.
My unit emitted unburnt gas smell the minute pilot started,
and was annoying during burner operation.
I discovered they built unit with primary pilot that had 2 ports.
They used LP and sealed off natural gas,instead turning lp/nat
knob on back activates second pilot for natural gas use.
This means natural gas goes thru LP pilot orifice and burns
slightly off during normal natural gas use(by design).
The unused natural gas orifice has 1 air mix hole and the LP orifice
has 2 air mix holes.
I carefully plugged 1 of the holes in the LP orifice and suddenly
pilot gas flame seated correctly on orifice port.Gone was the
unburnt odor of natural gas.
The typical flame in a flame appearance now was exhibited by
the small pilot,secondary pilot remained consistent with manual
picture.
Of course, to use with LP I would have to open blocked air mix
hole in addition to the other changes per manual.
Hope this helps someone with similar condition.

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1 Answer

How to change bad thermocouple on reliance gas hot waterheater reliance 606


it is important to turn off

the gas supply to the water heater at the manual gas shut-off

valve. This valve is typically located beside the water heater.

Note the position of the shut-off valve in the open/on position

then proceed to turn it off.

2. On the lower front of the water heater locate the combination

gas control valve/thermostat. Depress and hold

the lock tab located under the gas control knob on the right.

Rotate the gas control knob on the combination gas control

valve/thermostat clockwise until "OFF" aligns with the mark on

the front of the gas valve. Once the gas supply has been shutoff,

remove outer door. 3. Using a 1/4" nut driver or socket loosen the two screws securing

the manifold door assembly until they are free. Do not

totally remove the screws and plastic retainer washers from

the manifold door. The screws and retainer washers will be

needed to reattach the manifold door. 4. In this step, the thermocouple, manifold tube, pilot tube and

igniter wire will be disconnected from the combination gas

control valve/thermostat. Using a 7/16" wrench

disconnect the thermocouple (left-hand thread) and pilot tube

(right-hand thread). Using a 3/4" wrench disconnect the manifold

tube (right-hand thread). Carefully pull the igniter wire from

the igniter button.

5. Grasp the manifold tube and push down slightly to free the

manifold tube, pilot tube, and thermocouple from the combination

gas control valve/thermostat. when installation is complete and gas is back on, You should be able to relight the pilot and the functionality of your gas hot water heater should be restored.

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1 Answer

I had purchased this unit RMO-80LPT heater several years back, I never installed unitl this week. the sales en at the time told me it was gas/propane. Now seeing the -80LPT on the side is it propane...


The orifices for a propane heater are much smaller so you will not be able to get the natural gas to flow properly with the current orifices.

The both the natural gas and propane valve are 1/2 psi so the valve can be used but the regulator for propane is typically 8-11 inches on the wc table and the natural gas is typically 3 lbs on the wc.

You may be able to drill out the orifices in the burner and in the pilot ods and get the unit to work.

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1 Answer

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