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Generic problem for all Heaters

Reddy heater will not keep running




By chuck62959 on Nov 01, 2009

" "
30,000 reddy propane heater starts and runs as long as I hold the button in. when I release the button it quits
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Solution #1

posted on Nov 04, 2009
Not Rated)

tbugger
tbugger

Rank: Guru 
Rating: 90%, 77 votes
Test the thermocouple: Normal 0 Heater will run as long as the control valve is pressed.
According to DESA test these parts. NOTE: Not all heaters are equipped with
A relay.


Thermocouple
Turn off gas supply. Remove thermocouple
from gas valve. Using a digital
multi-meter set to the lowest DC millivolt
setting (meter needs to have alligator clips
on ends of leads), clip black lead to the
very tip of thermocouple (end removed
from valve). Clip red lead to the outer casing
of thermocouple for ground. Relight
unit output should be between 18 and 28
millivolts.
Relay
Turn off gas supply. Remove bottom of
base (if equipped). Relay is a normally
open circuit between terminals 4 and 6
which closes when current is supplied.
Using a digital multi-meter measure the
resistance. With no power to unit, resistance
between terminals 4 and 6 is open
circuit or no resistance. Apply power to
relay. Resistance between terminals 4 and
6 should be less than 100 mili ohms.

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This Problem Also Relates To: Coleman (5017B701) Utility Heater Coleman 5075751 Utility Heater Honeywell HZ-370 Ceramic Heater Honeywell HZ-3750GP Ceramic Heater Honeywell HZ-7020 Compact Heater Honeywell HZ2110 Utility Heater Honeywell HZ-710 Oil Filled Radiator Heater

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