Specifications
| Fuel | diesel |
|---|
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | ||||
| Fuel filter | — | ||||
| Oil filter | — | ||||
| Battery | — | ||||
| Belt | See Table 3-2 for scheduled maintenance. | — | |||
| Coolant | — | ||||
| Coolant filter | — | ||||
| Oil | — | ||||
| Spark plug | See Table 3-2 for scheduled maintenance. | — |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Common questions
What kind of fuel does the Cummins/Onan HQDS run on?
The Cummins/Onan HQDS runs on diesel.
Troubleshooting
3Fault codes
| Code | Meaning | Remedy |
|---|---|---|
| 434 | High Engine Temp — FAULT warning appears with the three-digit Warning or Fault Code Number, the time of occurrence of the warning or fault, and a brief description of the warning or fault; the FAULT warning does not time out | Press OK to continue and see Troubleshooting Fault Codes in the Service Manual |
Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Auto Mode Expires in 5 days | The AUTO safety input signal device must be cycled ON and OFF every 30 days to make sure it is still working; after 25 days a prompt appears that AUTO will expire in 5 days | Press OK to move to the screen that identifies the safety input signal device your coach was set up to use; cycle this signal device ON and OFF to reset AUTO for another 30 days (Brake Signal − with foot on the Brake, release and reset the Parking Brake to cycle the safety signal; Ignition Signal − turn the Ignition Key to the accessory position and back to OFF to cycle the safety signal; Park Signal − with foot on the Brake, push the Transmission Shift Lever out of Park and back into Park to cycle the safety signal) |
| Auto Mode Ended — Safety Input Expired | The AUTO safety input signal has not been cycled ON and OFF for 30 days or more | Cycle the safety signal ON and OFF to restore the signal for another 30 days |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
10| Part # | Description | Qty | System | |
|---|---|---|---|---|
| A01-002 | Air Filter | 1 | Air filter | Amazon eBay |
| B01-003 | Oil Filter | 1 | Oil filter | Amazon eBay |
| C01-004 | Fuel Filter | 1 | Fuel filter | Amazon eBay |
| D01-005 | Coolant Filter | 1 | Coolant filter | Amazon eBay |
| E01-006 | Belt | 2 | Belt | Amazon eBay |
| F01-007 | Battery | 1 | Battery | Amazon eBay |
| G01-008 | Spark Plug | 4 | Spark plug | Amazon eBay |
| P01-001 | Air Filter | 1 | Air filter | Amazon eBay |
| P02-001 | Oil Filter | 1 | Oil filter | Amazon eBay |
| P03-001 | Fuel Filter | 1 | Fuel filter | Amazon eBay |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Available documents
Operator's manual — 981-0178 Onan HQDSA Power System Operator's Manual (7-2009) (Cummins/Onan)Parts manual — 981-0283 Onan HQDSB Power System Parts Manual (5-2014) (Cummins/Onan)Service manual — 0981-0178 I7 201009 (Cummins/Onan)Service manual — 0981-0646 (Cummins/Onan)
This page was generated from the 4 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.