Pressure washer keeps blowing fuse?

[LotusMartin]

I’ve got a Nilfisk 140 pressure washer but it keeps blowing the fuse on my extension lead? It’s always done this so made up a heavy duty arctic cable lead for it years ago, but it’s doing it nearly every time i use it.

Am I looking at a new washer, new lead or can i get a 14 amp fuse?

Pisses me off as the washer is great.

[GSDGPW]

I’m no expert but I had a similar issue with a kranzle power washer. It turned out to be an internal leak which I believe tricked the machine into believing the Lance was open. It tried to pump against the closed Lance which then blows the fuse. I was also told not to use a power washer on an extension lead due to the power they draw. Like I said I’m no expert, just repeating what the repairer told me.

[dickymint]

Is your extension lead fully unwound?

[LotusMartin]

dickymint said:

Is your extension lead fully unwound?

yes. in always fully uncoil it and the one on the washer

[Carbon Sasquatch]

Process of elimination

Is it the socket, the extension lead or the device ?

Once you know that, your next action is clearer.

[Evoluzione]

Carbon Sasquatch said:

Process of elimination

Is it the socket, the extension lead or the device ?

Once you know that, your next action is clearer.

I believe that's what he's asking.

[Evoluzione]

Plug it directly into a socket and see what happens.

[finlo]

LotusMartin said:

I’ve got a Nilfisk 140 pressure washer but it keeps blowing the fuse on my extension lead? It’s always done this so made up a heavy duty arctic cable lead for it years ago, but it’s doing it nearly every time i use it.

Am I looking at a new washer, new lead or can i get a 14 amp fuse?

Pisses me off as the washer is great.

Go on you know you want to!

[anonymous-user]

finlo said:

LotusMartin said:

I’ve got a Nilfisk 140 pressure washer but it keeps blowing the fuse on my extension lead? It’s always done this so made up a heavy duty arctic cable lead for it years ago, but it’s doing it nearly every time i use it.

Am I looking at a new washer, new lead or can i get a 14 amp fuse?

Pisses me off as the washer is great.

Go on you know you want to!

As much as (I hope) this is tongue-in-cheek do not do this especially if your Amazon Alexa says you can.

Seriously though, does the pressure washer pulse on/off when the trigger is not pulled? If so it sounds like a poor seal somewhere allowing pressure loss which the motor builds back up.

The pulsing motor excessively heats the fuse in the plug and when you finally pull the trigger it goes pop.

[robwilk]

GSDGPW said:

. I was also told not to use a power washer on an extension lead due to the power they draw. Like I said I’m no expert, just repeating what the repairer told me.

This mine blows the starting capacitor if used on a long extension lead.

[LotusMartin]

gottans said:

As much as (I hope) this is tongue-in-cheek do not do this especially if your Amazon Alexa says you can.

Seriously though, does the pressure washer pulse on/off when the trigger is not pulled? If so it sounds like a poor seal somewhere allowing pressure loss which the motor builds back up.

The pulsing motor excessively heats the fuse in the plug and when you finally pull the trigger it goes pop.

Yes it does pulse. strangely it’s done this from new. I’m thinking it’s faulty. it doesn’t appear to leak but i’ll check in the morning.

Edited by LotusMartin on Wednesday 29th December 21:45

[TimmyMallett]

LotusMartin said:

gottans said:

As much as (I hope) this is tongue-in-cheek do not do this especially if your Amazon Alexa says you can.

Seriously though, does the pressure washer pulse on/off when the trigger is not pulled? If so it sounds like a poor seal somewhere allowing pressure loss which the motor builds back up.

The pulsing motor excessively heats the fuse in the plug and when you finally pull the trigger it goes pop.

Yes it does pulse. strangely it’s done this from new. I’m thinking it’s faulty. it doesn’t appear to leak but i’ll check in the morning.

I've had that on my Karcher for about 5 years since the warranty ran out (surprise surprise) so is there something I can fix? Mildly irritating more than anything

[Dr Mike Oxgreen]

Pulsing is quite likely to be a failed rubber O-ring on the connector where the high pressure hose plugs into the lance, or where the hose attaches to the body of the washer. These can be replaced very easily by prising off the old one and stretching a new one into place. If there’s no O-ring, it’ll be because the old one split completely and has escaped.

You can buy replacements cheaply on auction web sites, or on a well-known online store named after a tropical rainforest.

It could also be an internal leak, but first thing to check are these external O-rings.

[LotusMartin]

Dr Mike Oxgreen said:

Pulsing is quite likely to be a failed rubber O-ring on the connector where the high pressure hose plugs into the lance, or where the hose attaches to the body of the washer. These can be replaced very easily by prising off the old one and stretching a new one into place. If there’s no O-ring, it’ll be because the old one split completely and has escaped.

You can buy replacements cheaply on auction web sites, or on a well-known online store named after a tropical rainforest.

It could also be an internal leak, but first thing to check are these external O-rings.

Thanks mike, i think that’s probably it. will go measure…

[dickymint]

LotusMartin said:

Dr Mike Oxgreen said:

Pulsing is quite likely to be a failed rubber O-ring on the connector where the high pressure hose plugs into the lance, or where the hose attaches to the body of the washer. These can be replaced very easily by prising off the old one and stretching a new one into place. If there’s no O-ring, it’ll be because the old one split completely and has escaped.

You can buy replacements cheaply on auction web sites, or on a well-known online store named after a tropical rainforest.

It could also be an internal leak, but first thing to check are these external O-rings.

Thanks mike, i think that’s probably it. will go measure…

Next on the list for pulsing problems is the Auto Stop/Start valve................

https://www.candorservices.co.uk/products/nilfisk-...