We have a hot tub. the motor that is running at 21.4 amps and shutting down but motor is rated at 16.4/4.8 could too many jets cause this ?

Michael 10/08/2018. 6 answers
Home & Garden Do It Yourself (DIY)

6 Answers


STEVEN F 10/08/2018.

What you need is a PROFESSIONAL to actually inspect the hot tub AND the circuit.

This IS NOT something that can be diagnosed without at minimum REAL TIME interaction, which isn't possible on Yahoo Answers.


Spock (rhp) 10/08/2018.

no. motor likely needs replacing. it should NEVER draw more than 16.4 amps on startup.

before going to that extreme -- check every possible space for clog in the inlet or outlet piping. [inlet far more common]. then check same inside the pump. if the pump can't draw enough water, or push enough water, it might cause motor to draw too much current.

and yes, I know these hot tub motor/pumps tend to be specific to brand and that replacements are both expensive, difficult to get, and hard/expensive to install. My daughter's solution to that was to junk the tub completely [it was freestanding -- in ground ones rarely have this specific to the brand problem]


Michael 10/08/2018.

So what is causing these motors to go bad? this is the second one in less than a year?


USAFisnumber1 10/08/2018.

Most hot tubs need at least a 30 amp circuit. Some of the bigger ones need a 50 amp 220 circuit. If you are tripping the breaker on the house circuit panel then you need to upgrade the wiring to the hot tub. If you are tripping a circuit breaker in the hot tub it is probably due to the motor pulling too much load. MORE jets are better than LESS jets because the water can flow thru the pump better. I suggest you open all the jets up.


dtstellwagen 10/08/2018.

No, additional jets will reduce back pressure on motor, reduce amperage and you won't get adequate jet pressure. Too few jets will give you high pressure, more back pressure, and if too contricted low speed and high current.

Restricted flow, failing (and binding) pump head bearings or failed motor windings or capacitor can cause increased current.

Make sure insulation isn't packed around the motor, it needs to ventilate to not damage the windings.

The dual rating on the motor is full speed/low speed, the motor should pulse above label amps until it reaches operating speed, the labeled amps are the normal operating amps under normal load. It will draw higher amps if overloaded and held to lower speed. Startup current will pulse briefly at up to 20x rating of the motor, then quickly fall. Most meters aren't sensitive enough to see that pulse, you may see 2x to 3x the rating. But after 2 seconds it should fall to labeled draw.

A spa motor should last 10 years, this is really sounds like a factory design problem, like they put in a controller that could only drive a 1.5 hp 120v motor in when they really needed a 2 or 2 hp+ motor that would require a different controller that could drive a motor with 240v.

I really think it's time to bypass your local dealer and contact the factory.


Anonymous 10/08/2018.

Motor is shorted. Time to replace.


HighResolutionMusic.com - Download Hi-Res Songs

1 Alan Walker

Different World flac

Alan Walker. 2018. Writer: Alan Walker;Fredrik Borch Olsen;James Njie;Marcus Arnbekk;Gunnar Greve Pettersen;K-391;Corsak;Shy Martin;Magnus Bertelsen.
2 Ariana Grande

​Thank U, Next flac

Ariana Grande. 2018. Writer: Crazy Mike;Scootie;Victoria Monét;Tayla Parx;TBHits;Ariana Grande.
3 Mesto

Wait Another Day flac

Mesto. 2018.
4 Anne-Marie

Rewrite The Stars flac

Anne-Marie. 2018. Writer: Benj Pasek;Justin Paul.
5 Conor Maynard

How You Love Me flac

Conor Maynard. 2018. Writer: Yoshi Breen;Thom Bridges;Hardwell;Rik Annema;Conor Maynard;Cimo Fränkel;Snoop Dogg.
6 Rita Ora

Let You Love Me flac

Rita Ora. 2018. Writer: Rita Ora;Easyfun;Fred Gibson;Noonie Bao;LotusIV;Ilsey Juber.
7 Fitz And The Tantrums

HandClap flac

Fitz And The Tantrums. 2017. Writer: Fitz And The Tantrums;Eric Frederic;Sam Hollander.
8 Clean Bandit

Baby flac

Clean Bandit. 2018. Writer: Jack Patterson;Kamille;Jason Evigan;Matthew Knott;Marina;Luis Fonsi.
9 (G)I-DLE

POP/STARS flac

(G)I-DLE. 2018. Writer: Riot Music Team;Harloe.
10 Mark Ronson

Nothing Breaks Like A Heart flac

Mark Ronson. 2018. Writer: Thomas Brenneck;Maxime Picard;Ilsey Juber;Conor Szymanski;Clement Picard;Mark Ronson;Miley Cyrus.
11 ZAYN

Good Years flac

ZAYN. 2018. Writer: Anthony Hannides;Michael George Hannides;Khaled Rohaim;ZAYN;Herbie Crichlow.
12 Ava Max

Sweet But Psycho flac

Ava Max. 2018. Writer: Ava Max;TIX;Cirkut;Madison Love;Cook Classics.
13 Imagine Dragons

Bad Liar flac

Imagine Dragons. 2018. Writer: Jorgen Odegard;Daniel Platzman;Ben McKee;Wayne Sermon;Aja Volkman;Dan Reynolds.
14 Cmc

As Long As I'm With You flac

Cmc. 2018.
15 The Chainsmokers

Beach House flac

The Chainsmokers. 2018. Writer: Andrew Taggart.
16 Clean Bandit

Mama flac

Clean Bandit. 2018. Writer: Jason Evigan;Jack Patterson;Grace Chatto;Ellie Goulding;Caroline Ailin.
17 Cat Dealers

My Way flac

Cat Dealers. 2018.
18 Big Boi

Out At Night flac

Big Boi. 2018. Writer: Jack Patterson;John Ryan;Julian Bunetta;Big Boi.
19 Martin Garrix

Dreamer (Nicky Romero Remix) flac

Martin Garrix. 2018. Writer: Yury Parkhomenko;Aleksandr Parkhomenko;Ilsey Juber;Brian Lee;Mike Yung;Martin Garrix.
20 Bhad Bhabie

Playboy Style flac

Bhad Bhabie. 2018. Writer: Jack Patterson;Grace Chatto;Bhad Bhabie;George Astasio;Jason Pebworth;Jon Shave;Ryan Alan;Alex Oriet;David Phelan.

Language

Categories