Time to Troubleshoot the furnace
My Atwood furnace worked great when I tested it before buying the coach... I haven't tried to use it since then, but now that it's getting chilly I tried to fire it up, but the blower won't come on...
Forum Discussion
DC Voltage comes from a 'fused' circuit at DC Dist. Panel
Goes to:
t-stat and to an ON/OFF switch (local on frame of furnace).
From ON/OFF switch it goes to circuit board...that is ahy you have a GREEN light. Board has power.
From t-stat it goes to:
limit switch and sail switch where it stops until fan comes on and makes u sail switch
it also goes to circuit board for the 'timed delay' function (starts fan which makes up sail switch allowing voltage to go back to board....time delay then allows voltage to gas valve & sparker)
Sounds like issue is with timed delay circuit on board or with 4 wire connector on board.
When T-stat makes up (CLICK) DC voltage should be on:
RED wire from board to fan motor
BLUE wire in 4 wire connector to board
WHITE/BLUE (could be either) wire from t-stat to limit switch/to sail switch (but not on white wire from sail switch to 4 wire connector until fan runs)
Goes to:
t-stat and to an ON/OFF switch (local on frame of furnace).
From ON/OFF switch it goes to circuit board...that is ahy you have a GREEN light. Board has power.
From t-stat it goes to:
limit switch and sail switch where it stops until fan comes on and makes u sail switch
it also goes to circuit board for the 'timed delay' function (starts fan which makes up sail switch allowing voltage to go back to board....time delay then allows voltage to gas valve & sparker)
Sounds like issue is with timed delay circuit on board or with 4 wire connector on board.
When T-stat makes up (CLICK) DC voltage should be on:
RED wire from board to fan motor
BLUE wire in 4 wire connector to board
WHITE/BLUE (could be either) wire from t-stat to limit switch/to sail switch (but not on white wire from sail switch to 4 wire connector until fan runs)
