Electric Baseboard Thermostat

Posted by John on October 31, 2009, 2:37 pm

: quoted-printable

My elec. baseboard unit is barely putting out any heat. The thermostat =
is original to the house 30 years ago. It is a Honeywell T498A All =
connections at the stat are tight and voltage coming in is OK. Has the =
thermostat has gone bad? What is the likely. Thanks for any input. =
problem? The thermostat is only about $24.00
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<DIV><FONT face=3DArial>My elec. baseboard unit is barely putting out =

any=20
heat.  The thermostat is original to the house 30 years ago. It is =
a=20
Honeywell T498A  All connections at the stat are tight and voltage =
coming=20
in is OK.   Has the thermostat has gone =
bad?   =20
What is the likely.  Thanks for any input. problem? The=20

thermostat is only about $24.00 </FONT></DIV></BODY></HTML>

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Posted by dpb on October 31, 2009, 2:42 pm

John wrote:

> My elec. baseboard unit is barely putting out any heat. The
> thermostat is original to the house 30 years ago. It is a Honeywell
> T498A All connections at the stat are tight and voltage coming in is
> OK. Has the thermostat has gone bad? What is the likely. Thanks
> for any input. problem? The thermostat is only about $24.00

Possible, I suppose.

You can test it for continuity (unpowered, of course) to see if contacts
are closing.

Alternatively, bypass it temporarily and see if the unit itself heats.

--

Posted by John Grabowski on October 31, 2009, 4:21 pm

: quoted-printable

My elec. baseboard unit is barely putting out any heat. The =
thermostat is original to the house 30 years ago. It is a Honeywell =
T498A All connections at the stat are tight and voltage coming in is =
OK. Has the thermostat has gone bad? What is the likely. Thanks =
for any input. problem? The thermostat is only about $24.00=20

*Take out the thermostat and splice the wires together and see what =
kind of heat you get. Thermostats can go bad and so can heating =
elements.
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<DIV>"John" <<A =

wrote in message <A=20
=

sfe10.iad</A>...</DIV>
<DIV><FONT face=3DArial>My elec. baseboard unit is barely putting out =

any=20
heat.  The thermostat is original to the house 30 years ago. It =
is a=20
Honeywell T498A  All connections at the stat are tight and =
voltage coming=20
in is OK.   Has the thermostat has gone =
bad?   =20
What is the likely.  Thanks for any input. problem? The =

thermostat is only about $24.00 </FONT></DIV>
<DIV><FONT face=3DArial></FONT> </DIV>
<DIV><FONT face=3DArial></FONT> </DIV>
<DIV><FONT face=3DArial>*Take out the thermostat and splice the wires =

together=20
and see what kind of heat you get.  Thermostats can go bad and so =
can=20

heating elements.</FONT></DIV></BLOCKQUOTE></BODY></HTML>

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Posted by Ed Pawlowski on October 31, 2009, 4:37 pm

My elec. baseboard unit is barely putting out any heat. The thermostat is
original to the house 30 years ago. It is a Honeywell T498A All connections
at the stat are tight and voltage coming in is OK. Has the thermostat has
gone bad? What is the likely. Thanks for any input. problem? The
thermostat is only about $24.00

**************************************

What about the voltage coming out? That is the determining factor. If out
is ok, the heating element is the problem.

Posted by mm on October 31, 2009, 5:00 pm

wrote:

>My elec. baseboard unit is barely putting out any heat. The thermostat is
>original to the house 30 years ago. It is a Honeywell T498A All connections
>at the stat are tight and voltage coming in is OK. Has the thermostat has
>gone bad? What is the likely. Thanks for any input. problem? The
>thermostat is only about $24.00
>**************************************
>What about the voltage coming out? That is the determining factor. If out
>is ok, the heating element is the problem.

At first I didn't understand, so in case the OP doesn't understand, Ed
means the voltage accross the heating element, after the current has
passed through the thermostat on one side. It should be the full
house voltage.

Or you could measure the voltage across the thermostat. It should be
zero or very close to it. On the AC voltage scale, 120 volts or
higher, or 240 volts or higher.

Both of these are to be measured while the thermostat is closed, that
is, while the heat is on.

Since you are getting some heat, I sort of doubt it is the thermostat
Otoh, the heating element doesn't sound too likely either. Perhaps
some of the elements are on and working fine and others nearby are not
working at all? Or you have some of that new heat-absorbing Halloween
candy, and it's been sucking up all the heat.

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