39
OK" LED is off, replace CB.
PH and MH Diagnosis:
Confirm PH switch is on (red
marking visible). Next, check for voltage at PH switch. 115VAC should be present from
both black (BK) wires to any neutral (W wire). If 115VAC is present on one and not
the other, PH switch is open. Next, check PH and MH amp draw, if no amp draw is
present, check the continuity of PH and MH.
Note: If CB is in alarm, see "II.E.3. LED Lights and Alarm Safeties Chart." To clear all
alarms, set service menu item 3 to "ON." See "II.E.2. Service Menu" for details.
Continue to "III.A.1. Refrigerator and RFH1-SSB(-HD)(-HS)(-HSE) Refrigerator,"
"III.A.2a. Freezer (auxiliary code P-5 and earlier) and RFH1-SSB(-HS)(-HSE) Freezer,"
or "III.A.2b. Freezer (auxiliary code P-6 and later) and RFH1-SSB-HD Freezer."
1. Refrigerator and RFH1-SSB(-HD)(-HS)(-HSE) Refrigerator
7)
Startup–no component LEDs are on. LED 3 (EvapFM on) is off:
EvapFM energizes.
Note: EvapFM continues unless door is opened. 2.5 minute Comp delay timer starts.
Diagnosis:
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 that EvapFM is running. If not, check EvapFM
blade for binding. 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
continuity.
8a)
Cool Down–Refrigerator: LEDs 4 (Comp) and 5 (ConFM) are on
: EvapFM continues.
2.5 minute Comp delay timer terminates. Comp and ConFM energize. 2.5 min. Comp
minimum run timer starts.
8b)
Cool Down–RFH1-SSB(-HD)(-HS)(-HSE) Refrigerator: LEDs 4 (Comp and ConFM)
and 5 (unused) are on
: EvapFM continues. 2.5 minute Comp delay timer terminates.
Comp and ConFM energize. 2.5 min. Comp minimum run timer starts.
a)
Comp Diagnosis:
Check that Comp energizes. If Comp does not start, 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 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: Refrigerator:
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 the ConFM continuity
is good.