14
£
MAKE
PROPER
BURNER
ADJUSTMENT
DID
OPERATE
CONTROL LED
COME
ON?
DID
PTFI LED
COME ON AFTER
SUITABLE
DELAY?
DID
AIR FLOW
LED
COME
O.C.
ON
ALARM ON
NO HEAT
INSTALL DC VOLTMETER
IN TEST JACKS
SHUT FUEL
SUPPLY COCK
WAIT
5
MIN
RESET CONTROL
PROGRAMMER OR
MC120 DEFECTIVE
MAKE IT
CALL FOR HEAT
SEE SITUATION
SEE SITUATION
CLOSE WINDOW
AND REPEAT
SITUATION #1
IS
HEAT
BEING
CALLED
FOR?
ON?
IS
PROGRAM.
WINDOW
CLOSED?
#3
#2
YES
YES
YES
YES
NO
SITUATION #1
NO
NO
NO
NO
YES
YES
YES
YES
DID PTFI
IS
SYSTEM
RUNNING?
ALIGN
SCANNER
REPAIR
WIRING
SUCCESSFUL
RESET
REPLACE
PROGRAMMER
DID
FLAME
LED COME
ON?
YES
MP100 4-7 SECONDS
MP230 PREPURGE DELAY TIME
NO
YES
NORMAL LOCKOUT
NO
NO
NO
NO
NO
YES
AMPLIFIER
DEFECTIVE
OR MC120
REPLACE SCANNER
REPEAT
SITUATION #1
LED GO OFF
AFTER SUITABLE
DELAY?
M-SERIES II
SERVICE GUIDE
TO RESET THE CONTROL
POWER MUST BE ON. (L1-L2)
IS
THERE A
GOOD
FIRE?
IS
PROPER
ACROSS
S1 & S2
VOLTAGE
IS
WIRING &
TERM. CONTACT
PRESSURE
OK?
S1 S2
IS
SCANNER
POSITION
OK?
PROPER
PILOT VOLTAGE
(120V) ACROSS
3, 2
YES
PROPER
IGNITION
VOLTAGE (120V)
ACROSS
4, 2
YES
PROPER
MAIN VALVE
VOLTAGE (120V)
ACROSS
5, 2
YES
CHECK FUSE IN
PROGRAMMER.
NO
CHECK OUTPUT
YES
WIRING
CHECK FUSE IN
PROGRAMMER.
NO
CHECK FUSE IN
PROGRAMMER.
NO
CHECK OUTPUT
YES
WIRING
CHECK OUTPUT
YES
WIRING
