Relays to control both directions on tubular motor using Raspberry
The Songle SRD-05VDC-SL-C data sheet found here lists the form C inductive load rating as 3A 120VAC. No inductive load rating is given for 240VAC and no mention is made of motor duty. Relays used for motor control must be capable of switching the motor starting or locked-rotor current which can be much higher than the normal running current. Because of that, relays that are designed to control motors usually have a motor power rating.

Applying a derating factor to the relay's resistive current rating is not the best way to select a relay for controlling a motor. The inductive rating that you have in this case does not necessarily apply to motor control use. If you are using the relay at 120 volts, it might be ok, but if you have tried it and are having problems, that probably proves it is not ok. If your voltage is 240 volts, it would not be at all surprising that the relay is failing.


  I'm asking if putting some resistence or change the relays I can fix this issue.


Adding resistance will not help. You need to find relays that are rated for a 240 volt, 250W motor or have an inductive load contact rating that is at least several amps at 240 volts.

What you probably need is Songle SLA-05VDC-SC-A (Data Sheet) Note that this has one normally-open contact. That is all you need if you just need to connect one lead for one direction and the other load for the opposite direction. It is available mounted on a board with a driver circuit for example, here. Also note that the 120 volt HP rating is listed as 0.25 HP on the data sheet but 1 HP on the relay case. I think the data sheet is correct. Note that the motor that you have requires 250 watts input, so the output is probably not much more than half of that (1/6 HP).