Question about Mr. Heater Heating & Cooling
Posted by Anonymous on
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Posted on Jan 02, 2017
Remove the front panel. Tape the door switch to the closed position. If the thermostat is calling for heat the furnace should do the following: a light on the circuit board will flash and then the exhaust blower will start. A few seconds later (10-15) you should hear clicking at at the circuit board and an orange glow should be seen thru the small viewing port. A few seconds later the gas valve should open and the orange light will turn blue. If the blue flame only lasts a few seconds and then goes out, their may either be a blockage not allowing the flame to travel to all the burners and not allowing a flame sensor to sence flame, shutting down the unit. After a few cycles of not starting, the circuit board will flash a series of codes that you can read if you look on the back of the front cover. It will give you a starting point where we can research and come up witha more difinitive answer. Let us know what you find for codes.
Posted on Oct 26, 2007
remove the cover and check for spark at plug when plugged in if no spark check spark plug gor proper gap, or defective transformer electronic ignitor if you see spark check for proper pump pressure and restricted fuel flow due to seal leak, filter blocked and restriction in nozzle. I would check for defective photocell first for soot/dirt if dirty wipe with clean damp cloth remove photocell from heater and connect ohmeter on the 1000 ohl (rx1k) scale. Hold the lens up to a light source (60 wtt bulb, with the lens of the photocell pointed towards the source the resistance of the meter should be low by clocking off the light source by putting thumb over opening of cell the resistance on meter should be high, replace photo cell if a change in resistance is not observed during this test, let me know if you need more assistance
Posted on Dec 08, 2009
SOURCE: reddi heater 155 owners manual?
If this has a hot surface igniter, can you see it glowing? If not the igniter could be bad or the control
board for the igniter is baed.
If you are able, remover the igniter and hook it up to a 110 outlet, if it glows the problem is in the board.
If it has a board, follow the incoming power to line 1
and line 2. You will either have to splice the two leads
from the igniter into L1 and L2 or get a special spade
connector that can hold two leads on each terminal.
Plug unit in, glow coil should glow and unit should run
thats assuming you have that style of unit. Do not
attempt to do this unless you can safely perform this.
If you know of an electrician he can do this.
Posted on Jan 19, 2010
It could be a worn nozzle that does not attomise the fuel properly. Try changing or cleaning the nozzle.
Posted on Jan 07, 2011
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