Andrews
Andrews Main Power Switch Z143
Main power on/off switch for Andrews water heaters, part number Z143.
At a glance
- Part type: main power on/off switch
- Also known as 1823888
Showing prices
£25.19
£20.99 ex. VAT · VAT at 20%
Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Andrews Z143 is a main power on/off switch for Andrews water heaters. It controls the mains supply to the appliance, allowing the unit to be powered up or isolated. It is listed under gas boiler spares in the switches category.
Signs this part needs replacing
- The appliance will not power on when the switch is operated.
- The switch feels loose, stiff or fails to latch in the on position.
- Power cuts in and out when the switch is touched or moved.
- Visible scorching, discolouration or a burning smell around the switch.
- The switch no longer isolates the appliance from the mains supply.
Before you order
- Confirm the part number Z143 matches the one on your appliance or in the manufacturer's parts list.
- Check your water heater model against the fitment list above.
- Isolate the mains supply before removing or fitting the switch.
- Inspect the wiring and terminals for damage before fitting the new switch.
Compliance
| Alternative numbers | 1823888 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ANDREWS WATER HEATERS ANDREWS HOT WATER SPARES | — | — | — | |
| ANDREWS WATER HEATERS CLASSICFLO 10/105 | — | — | — | |
| ANDREWS WATER HEATERS CLASSICFLO 10/145 | — | — | — | |
| ANDREWS WATER HEATERS CLASSICFLO 14/175 | — | — | — | |
| ANDREWS WATER HEATERS CLASSICFLO 15/270 | — | — | — | |
| ANDREWS WATER HEATERS CLASSICFLO 20/360 | — | — | — | |
| ANDREWS WATER HEATERS CLASSICFLO RFF RFF 13/175 | — | — | — | |
| ANDREWS WATER HEATERS CLASSICFLO RFF RFF 18/270 | — | — | — | |
| ANDREWS WATER HEATERS CLASSICFLO RSC RSC 9/145 | — | — | — | |
| ANDREWS WATER HEATERS CLASSICFLO RSC RSC 9/180 | — | — | — |
Showing 10 of 75 compatible appliances.
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
manual
ANDREWS WATER HEATERS appliance manual — CLASSICFLO 10/105, CLASSICFLO 10/145, CLASSICFLO 14/175, CLASSICFLO 15/270, CLASSICFLO 20/360
manualmanualANDREWS WATER HEATERS appliance manual — CLASSICFLO RFF RFF 13/175, CLASSICFLO RFF RFF 18/270
manualmanualANDREWS WATER HEATERS appliance manual — ECOFLO EC230/600 A-B SERIES, ECOFLO EC230/700 A-B SERIES, ECOFLO EC230/960 A-B SERIES, ECOFLO EC380/1220 A-B SERIES, ECOFLO EC380/1400 A-B SERIES, ECOFLO EC380/740 A-B SERIES, ECOFLO EC380/980 A-B SERIES, ECOFLO LEC230/600 A-B SERIES, ECOFLO LEC230/700 A-B SERIES, ECOFLO LEC230/960 A-B SERIES, ECOFLO LEC380/1220 A-B SERIES, ECOFLO LEC380/1400 A-B SERIES, ECOFLO LEC380/740 A-B SERIES, ECOFLO LEC380/980 A-B SERIES
manualmanualANDREWS WATER HEATERS appliance manual — ECOFLO EC230/600 C SERIES (FEB 2014-OCT 2016), ECOFLO EC230/600 D SERIES (OCT 2016-AUG 2017), ECOFLO EC230/600 E SERIES (AUG 2017 ONWARDS), ECOFLO EC230/700 C SERIES (FEB 2014-OCT 2016), ECOFLO EC230/700 D SERIES (OCT 2016-AUG 2017), ECOFLO EC230/700 E SERIES (AUG 2017 ONWARDS), ECOFLO EC230/960 C SERIES (FEB 2014-OCT 2016), ECOFLO EC230/960 D SERIES (OCT 2016-AUG 2017), ECOFLO EC230/960 E SERIES (AUG 2017 ONWARDS), ECOFLO EC380/1220 C SERIES (FEB 2014-OCT 2016), ECOFLO EC380/1220 D SERIES (OCT 2016-AUG 2017), ECOFLO EC380/1220 E SERIES (AUG 2017 ONWARDS), ECOFLO EC380/1400 C SERIES (FEB 2014-OCT 2016), ECOFLO EC380/1400 D SERIES (OCT 2016-AUG 2017), ECOFLO EC380/1400 E SERIES (AUG 2017 ONWARDS), ECOFLO EC380/740 C SERIES (FEB 2014-OCT 2016), ECOFLO EC380/740 D SERIES (OCT 2016-AUG 2017), ECOFLO EC380/740 E SERIES (AUG 2017 ONWARDS), ECOFLO EC380/980 C SERIES (FEB 2014-OCT 2016), ECOFLO EC380/980 D SERIES (OCT 2016-AUG 2017), ECOFLO EC380/980 E SERIES (AUG 2017 ONWARDS), ECOFLO LEC230/600 C SERIES (FEB 2014-OCT 2016), ECOFLO LEC230/600 D SERIES (OCT 2016-AUG 2017), ECOFLO LEC230/600 E SERIES (AUG 2017 ONWARDS), ECOFLO LEC230/700 C SERIES (FEB 2014-OCT 2016), ECOFLO LEC230/700 D SERIES (OCT 2016-AUG 2017), ECOFLO LEC230/700 E SERIES (AUG 2017 ONWARDS), ECOFLO LEC230/960 C SERIES (FEB 2014-OCT 2016), ECOFLO LEC230/960 D SERIES (OCT 2016-AUG 2017), ECOFLO LEC230/960 E SERIES (AUG 2017 ONWARDS), ECOFLO LEC380/1220 C SERIES (FEB 2014-OCT 2016), ECOFLO LEC380/1220 D SERIES (OCT 2016-AUG 2017), ECOFLO LEC380/1220 E SERIES (AUG 2017 ONWARDS), ECOFLO LEC380/1400 C SERIES (FEB 2014-OCT 2016), ECOFLO LEC380/1400 D SERIES (OCT 2016-AUG 2017), ECOFLO LEC380/1400 E SERIES (AUG 2017 ONWARDS), ECOFLO LEC380/740 C SERIES (FEB 2014-OCT 2016), ECOFLO LEC380/740 D SERIES (OCT 2016-AUG 2017), ECOFLO LEC380/740 E SERIES (AUG 2017 ONWARDS), ECOFLO LEC380/980 C SERIES (FEB 2014-OCT 2016), ECOFLO LEC380/980 D SERIES (OCT 2016-AUG 2017), ECOFLO LEC380/980 E SERIES (AUG 2017 ONWARDS)
manualmanualANDREWS WATER HEATERS appliance manual — HI FLO 32/143, HI FLO 54/418, HI FLO 54/440, HI FLO 62/341, HI FLO 65/173, HI FLO 81/264, HI FLO L32/143
manualNo technical questions yet for this part.
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