I get a message on my Jandy heater display that reads "low pressure". When this happens, the heater will not fire or, it takes 10 to 15 minutes to fire. I recently ( 3 weeks ago) have had my heater serviced by a very reliable pool service company. I am trying to get them to return, but in the mean time am wondering if this could be/ should be something the gas company should look at? When this has happened in the past, I thought maybe it was due to low water pressure and would clean my filter. That never made a difference as far as the heater was concerned. It still read low pressure. Any tips would be appreciated. Thanks.