Board 100 - Make Up Air
Electrical Ratings
BM: 6.9 FLA
DM: 2.2 FLA
Key
1R
Relay 1
AS
Air Switch
BM
Blower Motor
C
Contactor
DAS
Discharge Air Sensor
DES
Damper End Switch
DM
Damper Motor
EI
Exhaust Interlock
FAS
Filter Air Switch
GV
Gas Valve
HVAS
High Velocity Air Switch
F
Fuse
FLA
Full Load Amps
HL
High Limit
IGN
Ignition
LL
Low Limit
LVAS
Low Velocity Air Switch
MV
Main Gas Valve
O/L
Overloads
PV
Pilot Valve
SS
Service Switch
TDR
Time Delay Relay
XFMR
Transformer
Submit Your Diagnosis
Blower Contactor coil open
Blower Motor dragging
Blower Motor windings grounded
Blower Motor windings open
Control circuit open
Contacts welded closed
Damper Motor seized
Damper Motor windings grounded
Damper Motor windings open
Exhaust Interlock open
Flame Failure
Fuse open
High Limit open
High Velocity Air Switch open
Low Limit open
Low Velocity Air Switch open
No Faults
No gas pressure
No power
Overload open
Single Phasing
Switch open
Regulator overfeeding
Transformer winding open
