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2a. Freezer (auxiliary code P-5 and earlier) and RFH1-SSB(-HS)(-HSE) Freezer
7)
Startup–LED 3 (EvapFM off) is on:
2.5 min. Comp delay timer starts. Cabinet
temperature appears on DB.
8a)
Cool Down–Freezer (auxiliary code P-5 and earlier): LEDs 4 (Comp)
and 5 (ConFM) are on. LED 3 (EvapFM on) is off:
2.5 min. Comp delay timer
terminates. Comp, ConFM, and
EvapFM energize. 2.5 min. Comp minimum run timer
starts.
8b)
Cool Down–RFH1-SSB(-HS)(-HSE) Freezer: LEDs 4 (Comp and ConFM) and
5 (DrH, PH, and MH) are on. LED 3 (EvapFM on) is off:
2.5 min. Comp delay timer
terminates. Comp, ConFM, EvapFM, DrH, PH, and MH energize. 2.5 min. Comp
minimum run timer starts.
a)
Comp Diagnosis:
Check that Comp energizes. If Comp does not energize, check
for 115VAC at CB K1 connector pin #10 (GY wire) to a neutral (W wire). If 115VAC is
not present, replace CB. If 115VAC is present, check for 115VAC at Comp relay black
(BK wire) and red (R wire) to a neutral (W wire). If 115VAC is not present on the
black (BK wire), check wiring connections. If 115VAC is present on black (BK wire)
but not on the red (R wire), Comp relay contacts are open. Confirm 115VAC on Comp
relay coil gray (GY wire) to a neutral (W wire). If 115VAC is present, and contacts
are open, replace Comp relay. Next, if 115VAC is present on the red (R wire), check
continuity of Comp overload. If overload is closed, check start capacitor, start relay,
and Comp motor winding. If overload is open, let overload cool and reset. Replace
overload if it does not reset. When overload closes, if Comp still does not start, check
start capacitor, start relay, and Comp motor winding.
b1)
ConFM Diagnosis: Freezer (auxiliary code P-5 and earlier):
If ConFM does
not energize, check for 115VAC at CB K9 connector pin #2 (BR wire) to a neutral
(W wire). If 115VAC is not present, replace CB. Next, check that the fan blade is not
binding and that ConFM continuity is good.
b2)
ConFM Diagnosis:
RFH1-SSB(-HS)(-HSE) Freezer:
If ConFM does not energize,
check for 115VAC at CB K1 connector pin #10 (GY wire) to a neutral (W wire).
If 115VAC is not present, replace CB. If 115VAC is present, check for 115VAC at
Comp relay black (BK wire) and red (R wire) to a neutral (W wire). If 115VAC is not
present on the black (BK wire), check wiring connections. If 115VAC is present on
black (BK wire) but not on the red (R wire), Comp relay contacts are open. Confirm
115VAC on Comp relay coil gray (GY wire) to a neutral (W wire). If 115VAC is
present, and contacts are open, replace Comp relay. Next, check that the fan blade
is not binding and that ConFM continuity is good.
c)
EvapFM Diagnosis:
If EvapFM does not energize, make sure "door" is not
displayed on DB. If so, check that CB dip switch #3 is in the factory default position.
See, "II.E.4.c) Door Switch Type (S3 dip switch 3)." Check door switch continuity.
Next, check for 115VAC at CB K1 connector pin #3 (DBU wire) to a neutral (W wire).
If 115VAC is not present, replace CB. If 115VAC is present, check EvapFM blade for
binding and EvapFM continuity.
