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38 Instructions for the Installer
4.7.2 Malfunction indications on the CC Ease Display à Remedy
This section contains tips on remedying the malfunctions described in section 4.7.1 that can appear on the CC Ease
display.
E1 / E2
Exhaust air/supply air fan
malfunction
Remove the filter,
the plastic front cover
and the metal cover
Do the fan
connection and the PCB
register 230 VAC?
Yes
Then initiate the
self-test (P76 on 1)
Do the fan
and the PCB
register current
(1.5 – 10 VDC)?
Yes
Remove the heat exchanger
and the foam part of the
bypass and replace the fan
No
Replace the PCB
CAUTION: Reset unit
No
Replace the PCB
CAUTION: Reset unit
’FiL‘ ’tEr’
in display
Remove plug
from socket
Clean or
replace filter
Mount filter with the rounded
part of the handle pointing
downwards
Reinsert the
plug in the
socket
Press
until ’FiL‘ ’tEr‘ disappears
CAUTION!
Avoid contact with the PCB
and frost protection
element due to risk
of electrocution
Left-hand or right-hand version of the MTD-ERV 350?
See illustration on plastic cover for location of PCB
ERV 350 Left: Supply fan left
ERV 350 Right: Supply fan right