PREVOST H3-45 2023 User Manual

Problem / Symptom Probable Causes Actions
Evaporator fan not
functioning
Circuit breaker CB3 tripped
Module AE54 is not powered
or is faulty
1. Check circuit breaker CB3
2. Check relay R12
3. Check the DIAGNOSTICS menu of Driver
Information Display (DID). Select VIEW
ACTIVE FAULTS and ELECTRICAL. The
message “No Response ModA54, Active”
indicates a power problem on the module. (A
DL0 (BBUS MUX) network problem would
show the same message but doesn't produce
this symptom).
4. Check / reset circuit breaker CB5
5. Check / replace fuse F135
6. Probe gray connector on module to see if it is
powered.
HVAC condenser fans
not functioning in speed 1
Module AE54 is not powered
or is faulty
1. Check the DIAGNOSTICS menu of Driver
Information Display (DID). Select VIEW
ACTIVE FAULTS and ELECTRICAL. The
message “No Response ModA54, Active”
indicates a power problem on the module. (A
DL0 (BBUS MUX) network problem would
show the same message but doesn't produce
this symptom).
2. Check / reset circuit breaker CB5
3. Check / replace fuse F135
4. Check / replace fuse F141-F144
5. Probe gray connector on module to see if it is
powered.
Sound system not
functioning
Circuit breaker CB11 tripped
1. Check CB11
2. Check / replace fuse F148, F200
PA-1652 Operator's Manual H3-45 Coach
Multiplex Troubleshooting B-7

PREVOST H3-45 2023 Specifications

General

Manufacturer	Prevost
Model	H3-45
Year	2023
Category	Buses
Engine	Volvo D13
Horsepower	500 hp
Length	45 ft
Width	102 in
Seating Capacity	56 passengers
Air Conditioning	Yes
GVWR	54, 000 lbs
Entertainment System	Available