Armstrong DRV40 - PCB Error; PCB and PSU Operational Check; Troubleshooting Actions for PCB Issues; Thermistor Error

Intelligent System Solutions® STEAM ● AIR ● HOT WATER
armstronginternational.com
Armstrong Hot Water, Inc. – DRV40-80 Gen. 2 Troubleshoot Guide
221 Armstron
g
Blvd.
,
Three Rivers
,
Michi
g
an 49093
–
U.S.A. Phone:
(
269
)
27
9
-
3602 Fax:
(
269
)
27
9
-
3130
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PCB Error
Has the valve been reset
(
i.e.
p
owered off
,
then on
)
?
Check
Yes
No
Reset the valve by
powering down & then
p
owerin
g
back on
Is the software/firmware
version 9 or greater?
No
If has BrainScan, replace
Ele. Housing
No
Ensure all wires are not
pinched & plugs are
connected; if needed
re
p
lace cable loom
Are all cables/wires &
connectors ok?
Yes
Yes
Yes
No
Replace Ele. Housing
No
Re
p
lace Ele. Housin
g
Is the valve PCB
operational and ok?
Is the valve PSU
operational and ok?
Yes
Issue addressed or Contact
Factory @ 269-279-3602
Thermistor Error
Has the valve been reset
(
i.e.
p
owered off
,
then on
)
?
Check
Yes
No
Reset the valve by
powering down & then
p
owerin
g
back on
No
No
Ensure all wires are not
pinched & plugs are
connected; if needed
re
p
lace cable loom
Are all cables/wires &
connectors ok?
Yes
Yes
Yes
No
Replace Ele. Housing
Re
p
lace cable loom
Are the thermistors
operational and ok?
Is the valve PCB
operational and ok?
Issue addressed or Contact
Factory @ 269-279-3602
Key:
PSU = Power Supply GDA = Gear Drive Assembly
PCB = Printed Circuit Board