Setting The Programme - 5/2 Day - Danfoss 102E5 Installation And User Manual

Electronic mini-programmer for controlling hot water and heating (including factory replacement units fru)
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Programming event times in 5/2 day
mode
You can programme your heating and hot water to come on
and go of up to 3 times each day, to suit your requirements,
with one set of programmes for weekdays and a different
set of programmes for the weekend.
Weekdays (MOTUWETHFR)
 Press PROGRAMME until 1
(Event 1) shows along the top of
the display and MOTUWETHFR
shows along the bottom.
 Use the + and - buttons to set the time you want your
system to fi rst come on in the morning
 Press PROGRAMME again to move to Event 2
 Use the + and - buttons to set the time you want your
system to fi rst go off.
 Continue using the PROGRAMME and +/- buttons
in this way to set the ON/OFF times for events 3-6
for weekdays.
Weekend (SASU)
 Press PROGRAMME again until
1 (Event 1) shows along the top
of the display and SASU shows
along the bottom of the display.
 Use the PROGRAMME and +/- buttons to set the
ON/OFF times for the weekend.
If at any time you wish to return to the factory preset
programme, press SELECT / ADVANCE / + / - buttons
together at the same time to reset the unit.
NB. It is not possible to programme times out of sequence.
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Questions and answers

Nigel Youngman
February 1, 2025

why wont my boiler start and go off via the time clock it is set to auto

1 comments:
Mr. Anderson
February 10, 2025

Your Danfoss 102E5 boiler may not be starting and stopping according to the timer set to auto due to several possible reasons:

1. Incorrect Programming – Verify that the programmed ON and OFF times are correctly set.
2. Manual Overrides Active – Check if the +1HOUR or ADVANCE override buttons are activated, as they can temporarily alter the schedule.
3. Unit Set to OFF – The ADVANCE function does not work if the unit is set to OFF, so ensure it is in AUTO mode.
4. Power Supply Issues – Confirm that the unit is receiving power (230V supply).
5. Wiring Issues – Ensure all wiring connections, including zone valves and thermostats, are properly connected.
6. Battery Backup Failure – If there is a battery backup issue, the unit may lose programmed settings and not function as expected.
7. Faulty Unit – If the above checks do not resolve the issue, the unit itself may be faulty and require inspection or replacement.

Check these factors to diagnose the issue and restore proper operation.

This answer is automatically generated

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