Honeywell REDLINK ERM5220R Product Data page 23

OUTDOOR UNIT STAGE 1 DOES NOT RUN WITH A CALL FOR COOLING
L LED IS LIT.
THE COMPRESSOR FAULT MONITOR ON THE
HEAT PUMP HAS DETERMINED SOMETHING
IS WRONG WITH THE COMPRESSOR.
IS THE LED ABOVE THE Y TERMINAL LIT
GREEN ON THE ERM5220R?
YES. FLASHING GREEN.
FLASHING INDICATES MINIMUM OFF TIME FOR COMPRESSOR.
ERM DOES MINIMUM OFF TIME ON POWER UP, EVEN IF
THERMOSTAT IS SET FOR NO MINIMUM OFF TIME.
ERM IS INDICATING A CALL FOR COMPRESSOR. MEASURE
VOLTAGE ACROSS THE Y AND C TERMINALS ON ERM.
0 VOLTS
24 VOLTS INDICATES ERM IS SENDING
VOLTAGE TO THE COMPRESSOR WIRES.
DOUBLE-CHECK WIRE CONNECTIONS.
SEE DIAGRAMS (FIGURES 10-11).
MEASURE VOLTAGE FROM R
TO C ON ERM. (METER TEST)
24 VOLTS
0 VOLTS INDICATES NO VOLTAGE TO POWER
ERM. IT IS VERY ODD THAT THERE ARE LEDS
LIT ON ERM IF THERE IS NO VOLTAGE.
DOUBLE-CHECK VOLTAGE METER.
WHEN THE COMPRESSOR LED AND Y LED ARE BOTH SOLID GREEN WE WOULD EXPECT
VOLTAGE FROM Y TO C. REPLACE ERM. IF YOU HAVE MORE THAN ONE FAILURE OF THIS
TYPE, PLEASE CALL THE SUPPORT LINE FROM THE SITE FOR FURTHER TROUBLESHOOTING
AT 800-468-1502 BETWEEN 8-4:30 CST M-F.
IF THE ISSUE IS NOT RESOLVED, PLEASE CALL THE SUPPORT LINE FROM THE SITE FOR FURTHER TROUBLESHOOTING AT 800-468-1502
BETWEEN 8-4:30 CST M-F.
L LED IS NOT LIT.
IS THE COMPRESSOR LED LIT ON THE ERM5220R?
YES
YES. SOLID GREEN.
24 VOLTS
ERM IS NOT LINKED TO THE
THERMOSTAT. SEE PAGES 14-17
FOR ASSISTANCE LINKING.
0 VOLTS
23
ERM5220R EQUIPMENT REMOTE MODULE
NO
IS THE BOILER LED LIT ON THE ERM5220R?
NO
ADD THE R TO J JUMPER ON ERM FOR
OUTDOOR UNIT APPLICATIONS. SEE
WIRING DIAGRAMS (FIGURES 10-11).
WHAT DOES THE CONNECT LED
ON ERM5220R INDICATE?
UNLIT
SOLID RED SOLID GREEN
VERIFY THE THERMOSTAT SHOWS "COOL ON" IN
DISPLAY. IF THERMOSTAT SHOWS "WAIT" OR
"WAITING FOR EQUIPMENT" THEN WAIT 5 MINUTES
FOR THE COMPRESSOR LOCKOUT DELAY.
IF THERMOSTAT SHOWS "COOL ON" AND THERE IS
MORE THAN ONE THERMOSTAT IN THE HOME, IT IS
POSSIBLE THAT A DIFFERENT THERMOSTAT IS
PAIRED WITH THIS ERM.
ERM LOST COMMUNICATION TO THERMOSTAT. CHECK THERMOSTAT
DISPLAY. IF POWER HAD BEEN LOST, WAIT AT LEAST 6 MINUTES
AFTER POWER IS RESTORED FOR LINK TO REESTABLISH. IF LED ON
ERM REMAINS RED, PRESS/HOLD BUTTON ON ERM FOR OVER 10
SECONDS. LED SHOULD GO OUT, COME ON RED, THEN GO OUT
AGAIN. THEN SEE PAGE 16 FOR ASSISTANCE RE-LINKING.
Fig. 19.
YES
NO
VERIFY CONNECTIONS TO R AND C AND
VERIFY 24 VAC TO THOSE TERMINALS.
SEE WIRING DIAGRAMS (FIGURES 10-11).
M36131
33-00205—01