Thermo King SB-200TG, Operation Manual

Page: 74 / 121

Alarm Codes
73
54 Test Mode Time-out
A diagnostic mode timed out, does not affect unit
performance.
X
55 Check Engine Speeds
Engine speed out of spec, check RPM, monitor box temp,
repair as required.
X
56 Evap Fan Low Speed
Unit operating with no low speed evaporator fan, repair as
required (RC units only).
X
57 Evap Fan High Speed
Unit operating with no high speed evaporator fan, repair as
required (RC units only).
X
58 Cond Fan Low Speed
Unit operating with no low speed condenser fan, repair as
required (RC units only).
X
59 Cond Fan High Speed
Unit operating with no high speed condenser fan, repair as
required (RC units only).
X
Table of Alarm Codes
*Alarms with an asterisk (*) can exist with Alarm Code 84. The alarm can clear automatically if condition does not reoccur.
NOTE: Not all alarm codes are available with all microprocessor controllers or all revisions of software.
Code Description Corrective Action
Level Of
Action
Ok
T
o
Run Ch
eck
S
hut
Dow
n
Alarm Codes
73
54 Test Mode Time-out
A diagnostic mode timed out, does not affect unit
performance.
X
55 Check Engine Speeds
Engine speed out of spec, check RPM, monitor box temp,
repair as required.
X
56 Evap Fan Low Speed
Unit operating with no low speed evaporator fan, repair as
required (RC units only).
X
57 Evap Fan High Speed
Unit operating with no high speed evaporator fan, repair as
required (RC units only).
X
58 Cond Fan Low Speed
Unit operating with no low speed condenser fan, repair as
required (RC units only).
X
59 Cond Fan High Speed
Unit operating with no high speed condenser fan, repair as
required (RC units only).
X
Table of Alarm Codes
*Alarms with an asterisk (*) can exist with Alarm Code 84. The alarm can clear automatically if condition does not reoccur.
NOTE: Not all alarm codes are available with all microprocessor controllers or all revisions of software.
Code Description Corrective Action
Level Of
Action
Ok
T
o
Run Ch
eck
S
hut
Dow
n