No Correct Electrical Connection - Worcester ZSBR 7-28 ICS1 Service Booklet

Rectifying faults
A8
flashing.

No correct electrical connection

Check
1. Mode selector switch is between two
settings
B Power OFF the appliance.
2.
Wiring between TR 2 and text-
display OK?
• Terminal 3 on TR 2 connected to
Terminal 3 on textdisplay ?
• Terminal 4 ... Terminal 4 ....
etc.
3. Lead(s) defective.
4. TR 2 defective.
20
Action
B Turn switch until it clicks into position.
A8? ↓2.
B Turn ON the appliance.
yes:
↓3.
B Rewire correctly as specified in the installation
no:
instructions.
B Turn ON the appliance.
after 90 sek.:
A8? ↓3.
B Check leads for continuity and replace as
necessary.
A8? ↓4.
B Power OFF the appliance.
B Change TR 2 .
B Turn ON the appliance.
7 181 465 347 (01.07)