Camus Hydronics DynaMax DMH081 Installation, Operation And Service Manual page 53

Fan Error displayed on screen
A fan error is displayed when the difference between the target and actual fan speed is greater than 300 RPM apart for over a
minute. This is a manual reset error where the technician must press RESET to clear the error.
Check software version on
display. [0FB4], [F371]
YES
Check wiring between J9
and 4-pin fan Molex fan
connection. Check for any
loose sockets in the plastic
connectors, if any repair
immediately
YES
Measure constant 14-15Vdc,
at J9-4 (+Vdc), J9-6 (-Vdc).
YES
Replace blower
Replacement of ignition module:
- Software update does not match those listed above
- [0FB4] release date: April 2009
- [F371] release date: December 2010
Replacement of blower:
- Blower runs continuously when boiler is in "OFF" mode or target fan speed is 0
- Blower attempts to rotate and stops
DynaMax Model
DM80, 100
DM 150
DM 200, 210, 250, 260
DM 299, 399
DM 500
DM 600 - 800
NO
module (848-MN) and
display (848-RC)
NO
Replace wiring
NO
Replace ignition
module (848-MN)
Blower Part #
55667.11221
55667.21120
55667.21080
55667.21200
55667.14002
G1G170
Replace ignition
48