Question on ELMWOOD thermal switch on Honeywell water heater

Plumbing Forums

Help Support Plumbing Forums:

bjch512

Member
Joined
Nov 23, 2022
Messages
8
Reaction score
0
Location
Texas
he ELMWOOD thermal switch was broken on our Honeywell waterheater. We use black tape to hold it for now. Please see photos below. Can someone please let me know

(1) Is the copper hex nut (pointed by red arrow) used to hold the thermal switch? Google doesn't show ELMWOOD thermal switch uses hex nut to hold it.
(2) I couldn't find where to buy exast ELMWOOD thermal switch. Any suggestions where I can find it?

Thanks & regards.
 

Attachments

  • 1.JPG
    1.JPG
    175.1 KB · Views: 0
  • 2.JPG
    2.JPG
    188.9 KB · Views: 0

breplum

Professional
Professional
Joined
Nov 14, 2017
Messages
1,635
Reaction score
823
Location
Lafayette, CA
Honeywell does not make water heaters, just the 'controls'.
You can call the mfr of the WH to get a part number or look via the mfrs documentation on the web for your model.
Then with part number in hand, you typically will have to find a plumbing wholesale shop who may have to order it if the WH is more than 6 y.o.
Most all WH have 6 yr parts warranty, which would be sent out for free by the mfr.
 

bjch512

Member
Joined
Nov 23, 2022
Messages
8
Reaction score
0
Location
Texas
Honeywell does not make water heaters, just the 'controls'.
You can call the mfr of the WH to get a part number or look via the mfrs documentation on the web for your model.
Then with part number in hand, you typically will have to find a plumbing wholesale shop who may have to order it if the WH is more than 6 y.o.
Most all WH have 6 yr parts warranty, which would be sent out for free by the mfr.
Thank you.

I removed the thermal switch from water heater. It has a 4" probe attached to it. Please see pic below. The part number on this ELMWOOD thermal switch is not very clear. It looks like "2450CMG7759-3 L450 N1121". I googl it but couldn't find. Anyone knows this is correct part #?

I found a similar thermal switch from eBay below. I can order it with different temp range from 125-140F to 195-210F. Which temp range is right for Honeywell water heater?


Thanks & regards.
 

Attachments

  • thermal-switch.jpg
    thermal-switch.jpg
    962.2 KB · Views: 0

wpns

Well-Known Member
Joined
Feb 15, 2022
Messages
425
Reaction score
136
Location
Tamarac, FL
What's on the other side of that sheet metal it's screwed into? Can't tell if that brass piece is part of the switch or something the switch screws into. Is there a sticker on the hot water heater that gives more information on manufacturer, model, serial, etc?
 

Twowaxhack

Professional
Professional
Joined
Feb 9, 2021
Messages
9,818
Reaction score
4,362
Location
United states
What's on the other side of that sheet metal it's screwed into? Can't tell if that brass piece is part of the switch or something the switch screws into. Is there a sticker on the hot water heater that gives more information on manufacturer, model, serial, etc?
It’s the burn chamber behind there. That’s a temp sensor that trips and interrupts the thermocouple circuit when the burn chamber gets too hot for any reason.
 

bjch512

Member
Joined
Nov 23, 2022
Messages
8
Reaction score
0
Location
Texas
What's on the other side of that sheet metal it's screwed into? Can't tell if that brass piece is part of the switch or something the switch screws into. Is there a sticker on the hot water heater that gives more information on manufacturer, model, serial, etc?
The sticker on water heater shows:

MODEL NUMBER: GS650HBRT 301
GAS TYPE: PROPANE
CAPACITY: 50.0
 

Twowaxhack

Professional
Professional
Joined
Feb 9, 2021
Messages
9,818
Reaction score
4,362
Location
United states
Looks like it’s a State water heater based off the number you posted.

State is owned by AO Smith now. So is American, us Craftmaster and a whole list more.

You can probably google the model number and probably find the parts diagram online. Or call State and get their tech support on the phone.
 

bjch512

Member
Joined
Nov 23, 2022
Messages
8
Reaction score
0
Location
Texas
Looks like it’s a State water heater based off the number you posted.

State is owned by AO Smith now. So is American, us Craftmaster and a whole list more.

You can probably google the model number and probably find the parts diagram online. Or call State and get their tech support on the phone.
I google the model number yesterday but couldn't find right part # for this broken thermal switch. But I found the following webset that says the temp range for water heater thermal switch is 160-200F. I then found a similar part from Walmart. Both web links are attached below.

(1) Thermal Switch (TCO):

(2) Thermal Switch from Walmart:
 

SHEPLMBR

She-Plmbr River Rat
Professional
Sponsor
Joined
Mar 9, 2016
Messages
1,682
Reaction score
593
Location
Augusta WV
I google the model number yesterday but couldn't find right part # for this broken thermal switch. But I found the following webset that says the temp range for water heater thermal switch is 160-200F. I then found a similar part from Walmart. Both web links are attached below.

(1) Thermal Switch (TCO):

(2) Thermal Switch from Walmart:
got the serial number? I can look it up for you
 

bjch512

Member
Joined
Nov 23, 2022
Messages
8
Reaction score
0
Location
Texas
got the serial number? I can look it up for you
Thank you for your help. The begining part of the number on the broken ELMWOOD thermal switch is not very clear but it looks like "2450CMG7759-3 L450 N1121".

The Honeywell water heater model number is GS650HBRT 301. I contacted Honeywell but their email states "Unfortunately, Honeywell no longer manufactures those type of commercial Thermals. No suggested replacement" :-(

It's highly appreciated if you could help with it. Thank you.
 

Twowaxhack

Professional
Professional
Joined
Feb 9, 2021
Messages
9,818
Reaction score
4,362
Location
United states
I know what I would do if that was my personal water heater.

Good luck, if anyone can help you it’ll be ShePlumber
 

SHEPLMBR

She-Plmbr River Rat
Professional
Sponsor
Joined
Mar 9, 2016
Messages
1,682
Reaction score
593
Location
Augusta WV
Thank you for your help. The begining part of the number on the broken ELMWOOD thermal switch is not very clear but it looks like "2450CMG7759-3 L450 N1121".

The Honeywell water heater model number is GS650HBRT 301. I contacted Honeywell but their email states "Unfortunately, Honeywell no longer manufactures those type of commercial Thermals. No suggested replacement" :-(

It's highly appreciated if you could help with it. Thank you.
I need the serial number of the water heater. It should be on the sticker of the water heater. The white one with the model number and other pertinance
 

wpns

Well-Known Member
Joined
Feb 15, 2022
Messages
425
Reaction score
136
Location
Tamarac, FL
I don't understand. It shows the thermal switch attached along with the rest of the parts.
They don’t sell it separately, and the OP just wants that one part. Deadlock. Either the company cares enough about the sale and their reputation that they’ll sell (or, heck, give) him the individual part or the consumer will have to buy the whole assembly. Guess who wins?
 

Latest posts

Top