Fault
7. Oil pressure is too high
or too low when engine is
running.
8. Engine temperature too
high.
9. Engine does not reach
rated speed.
10. Battery voltage too low.
11. Strong exhaust gas
colouring.
16. Service, spare parts and accessories
Warning
Spare parts and accessories not supplied by
Grundfos are not inspected or approved by
Grundfos.
The installation and/or use of such products may negatively alter
and thus impair the specified properties of the fire pump set.
The usage of non-original spare parts and accessories renders
any liability on behalf of Grundfos for resulting damages null and
void.
Any malfunctions which cannot be repaired should only be
corrected by Grundfos or authorised specialist companies.
Please provide an exact description in the event of a malfunction
so that our service technician can prepare and provide the
appropriate spare parts.
Please obtain the technical data for the system from the
nameplate.
17. Warranty
The warranty is governed by the framework of our general terms
of delivery. Liability for any damage resulting from incorrect
installation, electrical connection or use, as well as liability for
consequential damage, is excluded. The start of the warranty
period is to be verified.
18. Further documentation
These operating instructions are to be used in conjunction with
the following documentation:
•
wiring diagram of controller
•
service instructions of the fire pump set.
Cause
a) Oil filter blocked.
b) Water or fuel in the oil.
c) Oil level too low/too high.
d) Oil pump worn.
a) Cooling system faulty.
b) Insufficient cooling liquid.
c) Heat exchanger defective.
a) Incorrect speed setting.
b) Fuel filter partially blocked.
c) Air in fuel system.
d) Traces of water in the fuel.
e) Turbocharger or charge air cooler defective.
a) Cell short in starter battery.
b) Wiring of the battery charging circuit damaged or
insufficient terminal contact.
c) Insufficient power supply to the control cabinet.
d) V-belt tension too low.
e) Battery-charging unit defective.
a) Dirty air filter.
Remedy
Replace oil filter. See service instructions.
Change oil. See service instructions.
Fill or drain oil. See section 14.4.2 Filling of oil.
Replace oil pump.
Bypass the cooling circuit. See section
4.3.1 General description.
Fill cooling liquid. See section 14.4.4 Filling of
cooling liquid.
Replace heat exchanger.
Please contact Grundfos.
Change fuel filter. See service instructions.
Vent fuel system. See section 14.4.7 Venting of
fuel system.
Drain condensate from the fuel filter. See
section 14.4.5 Checking of fuel system.
Replace turbocharger or charge air cooler.
Replace starter batteries.
Check wiring and replace, if necessary. Check
terminal connections and tighten, if necessary.
Check power supply.
Check V-belt tension and correct, if necessary.
See 14.4.10 Checking of V-belt.
Replace battery-charging unit.
Replace air filter. See section 14.4.9 Checking
of air filter.
45
Need help?
Do you have a question about the Fire DNF and is the answer not in the manual?
Questions and answers