My auto-changeover regulator will not switch sources once the first tank goes empty. The curbside tank will feed until empty, but the driver's side will not flow. I am forced to either lug the empty tank to the LP station or swap the full, driver's side tank over to the bay for the curbside. OK check out my thinking on this: I can rule out the high-flow safety tank valve (on both tanks) as the culprit because either tank works fine in the curbside bay. True or false? If true, then would that would leave the regulator the most likely suspect?Thanks for any help given.

My first guess is the valve thinks there is a leak in the line. There has to be some back pressure to the valve for it to stay open.

enblethen wrote:My first guess is the valve thinks there is a leak in the line. There has to be some back pressure to the valve for it to stay open.Thanks. Do you know if the safety device that prevents the tank from flowing is located on the tank or in the pigtail?

You are moving the lever to point to the other tank right?Otherwise yes I would replace the dual input regulator. I recommend the Cavagna brand.

time2roll wrote:You are moving the lever to point to the other tank right?Otherwise yes I would replace the dual input regulator. I recommend the Cavagna brand.I'm confused. The lever need not be moved for the auto feature to work, right?

The lever should point toward the cylinder you want to empty first.Yes no matter which way it is pointing the propane should flow until both are empty.Don't rule out getting new pigtails. They have a check valve that can get jammed up.

Automatic Changeover Regulator not changing over

time2roll
Nomad
Jul 13, 2021
The lever should point toward the cylinder you want to empty first.
Yes no matter which way it is pointing the propane should flow until both are empty.

Don't rule out getting new pigtails. They have a check valve that can get jammed up.
RKW
Explorer
Jul 13, 2021
time2roll wrote:
You are moving the lever to point to the other tank right?

Otherwise yes I would replace the dual input regulator. I recommend the Cavagna brand.

I'm confused. The lever need not be moved for the auto feature to work, right?
time2roll
Nomad
Jul 13, 2021
You are moving the lever to point to the other tank right?

Otherwise yes I would replace the dual input regulator. I recommend the Cavagna brand.
RKW
Explorer
Jul 13, 2021
enblethen wrote:
My first guess is the valve thinks there is a leak in the line. There has to be some back pressure to the valve for it to stay open.

Thanks. Do you know if the safety device that prevents the tank from flowing is located on the tank or in the pigtail?
enblethen
Nomad
Jul 13, 2021
My first guess is the valve thinks there is a leak in the line. There has to be some back pressure to the valve for it to stay open.

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Automatic Changeover Regulator not changing over

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